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THE EVERYDAY ESSENTIALS

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YOUR TOOLKIT, ALL TOGETHER

Little tasks. Consider them handled.

ConvertersTXT conversions

20
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Markdown to TXT

Extract readable text from Markdown and download UTF-8 TXT.

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HTML to TXT

Extract readable HTML body text as TXT without running scripts or loading resources.

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Word to TXT

Export Word DOCX body paragraphs and tables as UTF-8 TXT.

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PowerPoint to TXT

Export PowerPoint slide text as TXT in presentation order.

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Excel to TXT

Export an Excel worksheet as tab-separated TXT.

✓

CSV to TXT

Convert CSV records to quoted, tab-separated TXT.

✓

JSON to TXT

Validate and format JSON as readable TXT while retaining its data structure.

✓

XML to TXT

Validate XML and export its markup as UTF-8 TXT.

✓

YAML to TXT

Validate YAML and export its source and comments as UTF-8 TXT.

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EPUB to TXT

Extract EPUB chapter text as TXT in book reading order.

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TXT to PDF

Create a PDF document from plain TXT with basic paragraph layout.

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TXT to Word

Create a Word DOCX document from plain TXT.

✓

TXT to HTML

Create an HTML document that displays plain TXT literally with preserved whitespace.

✓

TXT to Markdown

Convert TXT to a literal Markdown code block while preserving text and whitespace.

✓

TXT to CSV

Convert consistently delimited TXT rows to comma-separated CSV.

✓

TXT to Excel

Convert delimited TXT into an Excel worksheet with values stored as text.

✓

TXT to JSON

Validate JSON contained in a TXT file and export formatted JSON.

✓

TXT to XML

Validate XML contained in TXT and export UTF-8 XML.

✓

TXT to YAML

Validate YAML contained in TXT and export its source as YAML.

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PDF to text

Extract selectable PDF text into a UTF-8 text file on your device.

ConvertersFrom PDF

11
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PDF to image Converter

Convert PDF to image. Download the converted file and review its content.

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PDF to PNG Converter

Convert PDF pages to PNG images with selectable resolution. Download one image per page.

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PDF to JPEG Converter

Convert PDF pages to JPEG images with selectable resolution. Download one image per page.

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PDF to WebP Converter

Convert PDF pages to WebP images with selectable resolution. Download one image per page.

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PDF to TIFF Converter

Convert PDF pages to TIFF images with selectable resolution. Download one image per page.

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PDF to Word (DOCX) Converter

Extract PDF content into a Word DOCX document. Complex layouts may change; scans require OCR first.

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PDF to HTML Converter

Convert PDF content to HTML for further editing. Complex page layouts may change.

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PDF to PowerPoint (PPTX) Converter

Convert each PDF page into an image on a PowerPoint PPTX slide. Text and shapes are not editable.

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PDF to Markdown Converter

Extract PDF text into Markdown. Scanned pages require OCR before text conversion.

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PDF tables to Excel

Extract tables from aligned selectable PDF text into an Excel workbook.

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PDF tables to CSV

Extract tables from aligned selectable PDF text into CSV files.

ConvertersDocuments & structured data

21
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Word (DOCX) to Markdown Converter

Convert Word DOCX content to Markdown for text editing and publishing.

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Excel (XLSX) to CSV Converter

Export Excel XLSX spreadsheet data as CSV for use in other spreadsheet and data tools.

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Excel (XLSX) to JSON Converter

Export Excel XLSX spreadsheet data as JSON for structured processing.

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JSON to Excel (XLSX) Converter

Convert JSON data into an Excel XLSX spreadsheet for viewing and editing.

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CSV to Excel (XLSX) Converter

Convert CSV table data into an Excel XLSX spreadsheet.

✓

CSV to JSON Converter

Convert CSV rows into JSON data for applications and data processing.

✓

XML to Excel

Convert repeated flat XML records into an Excel worksheet.

✓

Excel to XML

Export an Excel worksheet as XML records.

✓

XML to CSV

Convert repeated flat XML records into CSV rows.

✓

CSV to XML

Convert CSV headers and records into XML rows.

✓

XML to JSON

Convert XML elements, attributes and repeated children into structured JSON.

✓

JSON to CSV

Export a JSON array of objects as CSV records.

✓

JSON to XML

Convert JSON objects, arrays and scalar values into typed XML.

✓

YAML to JSON

Convert YAML data to standard JSON locally.

✓

JSON to YAML

Convert JSON objects, arrays and scalar values to YAML.

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EPUB to PDF

Export the text of an EPUB book to PDF in chapter reading order.

ConvertersMarkdown, HTML & LaTeX

12
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Markdown to LaTeX Converter

Convert Markdown headings, lists and code to a LaTeX document for further editing.

✓

Markdown to JSON Converter

Wrap Markdown source text in a JSON content field for storage and structured processing.

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Markdown to HTML Converter

Convert Markdown headings, lists, links and code into an HTML document.

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Markdown to PDF Converter

Convert a Markdown document into a downloadable PDF with basic document formatting.

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Markdown to Word (DOCX) Converter

Convert Markdown headings, lists, emphasis and code into a Word DOCX document.

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HTML to PDF Converter

Convert HTML headings, text, lists and links into a PDF. Browser conversion omits CSS and scripts.

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HTML to LaTeX Converter

Convert HTML document content to LaTeX. Browser conversion omits CSS, scripts and external images.

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HTML to JSON Converter

Parse HTML into a structured JSON representation of the document.

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HTML to Markdown Converter

Convert HTML document content into Markdown for text editing and publishing.

ConvertersQR code decoding

3
✓

QR Code to Text

Extract the text stored in a QR code image without opening links or sending the image to a server.

✓

QR Code to JSON

Decode JSON stored in a QR image, or export a structured report for text, links, Wi-Fi and vCard content.

✓

QR Code to vCard Converter

Extract a vCard contact from a QR image and download a VCF file locally.

ConvertersImages & Base64

8
✓

Image to Base64 Converter

Encode a PNG, JPEG or other supported image as Base64 text for embedding or transfer.

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Image to PDF Converter

Convert a PNG, JPEG or other supported image into a PDF document.

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Image to PowerPoint (PPTX) Converter

Place supported images on PowerPoint PPTX slides and download the presentation.

✓

Base64 to Image Converter

Decode Base64 image data and download the original image bytes without re-encoding.

≈

TIFF to SVG

Turn a TIFF image into palette-based SVG vector tiles, without embedding a bitmap.

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SVG to PNG

Rasterize a static, self-contained SVG to a transparent PNG locally.

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GIF to images

Extract individual GIF frames as composed PNG images with transparency.

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PNG to SVG

Convert a PNG into palette-based SVG vector tiles without embedding a bitmap.

PDF toolsArrange pages

7
✓

Merge PDF Files

Combine multiple PDF files into one document in the order you choose.

✓

Split PDF Pages

Split a PDF into individual page files, with visual page selection for exporting a subset.

✓

Remove PDF Pages

Delete selected pages from a PDF using page thumbnails while keeping the remaining pages together.

✓

Reorder PDF Pages

Reorder PDF pages with drag and drop and save them in a new page order.

✓

Extract PDF Pages

Select PDF pages visually and export them together as a separate PDF document.

✓

Rotate PDF

Rotate selected PDF pages by 90, 180 or 270 degrees without rotating the rest of the document.

✓

Add page numbers to PDF

Number all or selected PDF pages while retaining text and graphics.

PDF toolsEdit & redact

5
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PDF Text Editor

Click supported text in your PDF and edit it directly in a text box. Process changes locally using the original font.

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Redact PDF

Permanently remove selected PDF areas by rebuilding every page from already-masked pixels, without original text or hidden document objects.

✓

Add Watermark to PDF

Add a text watermark to PDF pages with configurable opacity, color, rotation, position and a single or repeated layout.

≈

Remove PDF Watermark

Remove selected text, images or graphic groups from a PDF. Review each page; marks merged into images cannot be removed separately.

✓

Make PDF Fillable

Add named AcroForm text fields, checkboxes and dropdown choices using normalized top-left rectangles. Keeps existing fields and page contents. No automatic blank detection or XFA conversion; verify reader compatibility.

PDF toolsCompress & repair

2
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Compress PDF Files

Optimize PDF content streams with lossless compression. File size savings depend on the original document.

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Repair PDF

Attempt to rewrite a damaged PDF into a readable document. Recovery depends on which parts of the file remain intact.

PDF toolsProtect, sign & validate

5
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PDF to PDF/A

Convert to PDF/A-2b or 3b locally with embedded fonts. The exact output is validated before download. Unsupported content can be removed or rejected; review the result.

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Digitally Sign PDF

Digitally sign a PDF with a PKCS#12 certificate through the OneKit CLI. A certificate and its password are required.

CLI onlyDigitally Sign PDF CLI details →
✓

Password Protect PDF

Protect your PDF with AES-256 encryption and a password. The algorithm is selected automatically; no encryption settings are needed.

✓

Remove PDF Password

Remove password protection from PDFs encrypted with AES-128, AES-256 or legacy RC4. The existing encryption is detected automatically.

✓

PDF/A Validator

Check PDF/A-1b, 2b or 3b on your device and download a JSON report. Unsupported content is reported as not checked.

PDF toolsConverters

21
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Markdown to PDF

Basic document conversion in the local Python core. CSS, scripts and external images are omitted; tables become text rows. PDF uses Latin fonts and at most 100 pages. Up to 256 KiB per input file.

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PDF to image

Choose PNG, JPEG, WebP or TIFF. Exports one image per PDF page locally. Up to 256 pages and 40 million pixels per page; output is limited to 32 MiB in total. Reduce DPI for large documents.

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PDF to PNG

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

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PDF to JPEG

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

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PDF to WEBP

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

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PDF to TIFF

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

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PDF to Word

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

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PDF to HTML

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

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PDF to PowerPoint

Each PDF page becomes an image on a PowerPoint slide. Text and shapes are not editable. Up to 256 pages and 40 million pixels per page; reduce DPI for large pages.

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PDF to Markdown

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

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Image to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

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Word to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

CLI onlyWord to PDF CLI details →
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PowerPoint to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

CLI onlyPowerPoint to PDF CLI details →
≈

LaTeX to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

CLI onlyLaTeX to PDF CLI details →
≈

HTML to PDF

Basic document conversion in the local Python core. CSS, scripts and external images are omitted; tables become text rows. PDF uses Latin fonts and at most 100 pages. Up to 256 KiB per input file.

≈

Excel to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

CLI onlyExcel to PDF CLI details →
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EPUB to PDF

Export the text of an EPUB book to PDF in chapter reading order.

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PDF tables to Excel

Extract tables from aligned selectable PDF text into an Excel workbook.

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PDF tables to CSV

Extract tables from aligned selectable PDF text into CSV files.

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TXT to PDF

Create a PDF document from plain TXT with basic paragraph layout.

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PDF to text

Extract selectable PDF text into a UTF-8 text file on your device.

ImagesDownload

1
✓

Image Downloader

Download original images from a direct URL or accessible page locally. Sites may block browser access.

ImagesConvert & export

4
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Image Converter

Convert images between PNG, JPEG, WebP, TIFF, BMP, ICO and GIF with selectable output quality.

✓

Extract Images from PDF

Export embedded raster images from a PDF as separate image files. This extracts images rather than rendering whole pages.

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Favicon Generator

Turn an image into a multi-resolution favicon ICO or a website icon bundle with PNG icons, a web manifest and installation instructions.

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JPG to SVG

Creates real palette-based vector paths by merging color tiles, without embedding a bitmap. Photographs become posterized; curved outlines and fine gradients are approximated. Best for simple flat artwork.

ImagesResize, crop & rotate

3
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Crop Image

Crop an image visually by drawing a selection, resizing its corners or entering exact pixel coordinates.

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Image Upscaler

Enlarge an image 2×, 3× or 4× with Lanczos resampling and download a PNG.

✓

Rotate & Flip Images

Rotate images by 90, 180 or 270 degrees and reflect them horizontally or vertically. Export a PNG locally.

ImagesEffects, backgrounds & redaction

7
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Redact Image

Replace selected image pixels with solid black and export a fresh opaque PNG without original metadata or hidden alpha pixels.

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Add text to image

Add text to an image locally with adjustable size, color and position.

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Blur and Pixelate Image

Apply Gaussian blur, pixelation, box blur, a solid color or grayscale to an entire image or selected rectangles.

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Image Background Remover

Remove image backgrounds locally with U2Net and download a transparent PNG.

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Repair Photo Defects

Clean small speckles with a median filter or reconstruct selected areas by harmonic diffusion. Estimates surrounding colors; cannot recover hidden originals or repair every photographic defect. Saves a new PNG.

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Remove Image Watermark

Reconstruct manually selected watermark areas from surrounding pixels using harmonic diffusion. Estimates missing content; large marks, textures and faces may not reconstruct convincingly. No automatic mark detection.

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Sharpen and Deblur Image

Unsharp masking or bounded Gaussian Richardson-Lucy deconvolution. Deblurring assumes a blur model and may amplify noise or halos; missing detail cannot be guaranteed. Deconvolution is limited to one million pixels.

ImagesCompression

1
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Image Compressor

Adjust image quality and output format to reduce file size. Results depend on the image and selected format.

ImagesConverters

15
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PDF to image

Choose PNG, JPEG, WebP or TIFF. Exports one image per PDF page locally. Up to 256 pages and 40 million pixels per page; output is limited to 32 MiB in total. Reduce DPI for large documents.

≈

PDF to PNG

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

≈

PDF to JPEG

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

≈

PDF to WEBP

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

≈

PDF to TIFF

Exports one image per PDF page. Up to 256 pages and 40 million pixels per page. Output is limited to 32 MiB in total; reduce DPI for large documents.

✓

Image to Base64

Structured conversion; the output represents the source data.

≈

Image to PDF

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

≈

Image to PowerPoint

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

✓

Base64 to Image

Structured conversion; the output represents the source data.

≈

Word to PNG

Formatting, fonts, layout, formulas or unsupported elements may change. Scanned PDFs require OCR first.

CLI onlyWord to PNG CLI details →
≈

TIFF to SVG

Turn a TIFF image into palette-based SVG vector tiles, without embedding a bitmap.

≈

SVG to PNG

Rasterize a static, self-contained SVG to a transparent PNG locally.

≈

GIF to images

Extract individual GIF frames as composed PNG images with transparency.

≈

PNG to SVG

Convert a PNG into palette-based SVG vector tiles without embedding a bitmap.

CompareDocuments

3
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LaTeX Diff Checker

Compare two LaTeX files side by side, review highlighted differences and merge individual lines in either direction.

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Compare PDF Text

Compare extracted text from two PDF files side by side and merge individual lines. Visual layout and formatting are not compared.

≈

Compare Word Documents

Compare extracted text from two Word files side by side and merge individual lines. Visual layout and formatting are not compared.

CompareCode & structured data

3
✓

JSON Diff Checker

Compare two JSON files side by side, review highlighted differences and merge individual lines in either direction.

✓

Compare Jupyter Notebooks

Compare Jupyter notebooks by code cells, Markdown cells or both, and merge individual source lines while preserving notebook structure.

✓

Code Diff Checker

Compare two code files side by side, review highlighted differences and merge individual lines in either direction.

ComparePlain text

1
✓

Text Diff Checker

Compare two text files side by side, review highlighted differences and merge individual lines in either direction.

DeveloperFormatters

48
✓

JavaScript Formatter

Format JavaScript source with consistent layout and indentation for easier reading and review.

✓

TypeScript Formatter

Format TypeScript source with consistent layout and indentation for easier reading and review.

✓

JSX Formatter

Format JSX source with consistent layout and indentation for easier reading and review.

✓

TSX Formatter

Format TSX source with consistent layout and indentation for easier reading and review.

✓

Python Formatter

Format Python source with consistent layout and indentation for easier reading and review.

✓

Java Formatter

Format Java source with consistent layout and indentation for easier reading and review.

✓

C Formatter

Format C source with consistent layout and indentation for easier reading and review.

✓

C++ Formatter

Format C++ source with consistent layout and indentation for easier reading and review.

✓

C# Formatter

Format C# source with consistent layout and indentation for easier reading and review.

✓

Go Formatter

Format Go source with consistent layout and indentation for easier reading and review.

✓

PHP Formatter

Format PHP source with consistent layout and indentation for easier reading and review.

✓

Dart Formatter

Format Dart source with consistent layout and indentation for easier reading and review.

✓

Lua Formatter

Format Lua source with consistent layout and indentation for easier reading and review.

✓

Bash Formatter

Format Bash source with consistent layout and indentation for easier reading and review.

✓

Shell Formatter

Format Shell source with consistent layout and indentation for easier reading and review.

✓

SQL Formatter

Format SQL source with consistent layout and indentation for easier reading and review.

✓

HTML Formatter

Format HTML source with consistent layout and indentation for easier reading and review.

✓

CSS Formatter

Format CSS source with consistent layout and indentation for easier reading and review.

✓

SCSS Formatter

Format SCSS source with consistent layout and indentation for easier reading and review.

✓

Less Formatter

Format Less source with consistent layout and indentation for easier reading and review.

✓

XML Formatter

Format XML source with consistent layout and indentation for easier reading and review.

✓

SVG Formatter

Format SVG source with consistent layout and indentation for easier reading and review.

✓

JSON Formatter

Format JSON source with consistent layout and indentation for easier reading and review.

✓

JSON5 Formatter

Format JSON5 source with consistent layout and indentation for easier reading and review.

✓

JSONC Formatter

Format JSONC source with consistent layout and indentation for easier reading and review.

✓

YAML Formatter

Format YAML source with consistent layout and indentation for easier reading and review.

✓

TOML Formatter

Format TOML source with consistent layout and indentation for easier reading and review.

✓

Markdown Formatter

Format Markdown source with consistent layout and indentation for easier reading and review.

✓

MDX Formatter

Format MDX source with consistent layout and indentation for easier reading and review.

✓

GraphQL Formatter

Format GraphQL source with consistent layout and indentation for easier reading and review.

✓

Vue Formatter

Format Vue source with consistent layout and indentation for easier reading and review.

✓

Svelte Formatter

Format Svelte source with consistent layout and indentation for easier reading and review.

✓

Astro Formatter

Format Astro source with consistent layout and indentation for easier reading and review.

✓

Solidity Formatter

Format Solidity source with consistent layout and indentation for easier reading and review.

✓

HCL Formatter

Format HCL block indentation and attribute spacing while preserving expressions, strings and comments.

✓

Terraform Formatter

Format Terraform block indentation and attribute spacing while preserving expressions, strings and comments.

✓

Dockerfile Formatter

Format Dockerfile instruction keywords and line endings while preserving commands, comments and continuations.

✓

R Formatter

Format R source with consistent layout and indentation for easier reading and review.

CLI onlyR Formatter CLI details →

DeveloperValidators

53
✓

JavaScript Validator

Check JavaScript syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

TypeScript Validator

Check TypeScript syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

JSX Validator

Check JSX syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

TSX Validator

Check TSX syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Python Validator

Check Python syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Java Validator

Check Java source syntax locally and download a JSON report. Compilation, types and project dependencies are not checked.

✓

C Validator

Check C source syntax locally and download a JSON report. Compilation, types and project dependencies are not checked.

✓

C++ Validator

Check C++ source syntax locally and download a JSON report. Compilation, types and project dependencies are not checked.

✓

C# Validator

Check C# syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyC# Validator CLI details →
✓

Go Validator

Check Go syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Rust Validator

Check Rust source syntax locally and download a JSON report. Compilation, types and project dependencies are not checked.

✓

PHP Validator

Check PHP syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Ruby Validator

Check Ruby source syntax locally and download a JSON report. Compilation, types and project dependencies are not checked.

✓

Kotlin Validator

Check Kotlin syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyKotlin Validator CLI details →
✓

Swift Validator

Check Swift syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlySwift Validator CLI details →
✓

Dart Validator

Check Dart syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Scala Validator

Check Scala syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyScala Validator CLI details →
✓

Lua Validator

Check Lua syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Bash Validator

Check Bash syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Shell Validator

Check Shell syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

PowerShell Validator

Check PowerShell syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyPowerShell Validator CLI details →
✓

SQL Validator

Check PostgreSQL SQL syntax and download a JSON report without connecting to or executing queries on a database.

✓

HTML Validator

Parse HTML and download a JSON report. Parser acceptance is not a complete HTML standards conformance audit.

✓

CSS Validator

Parse CSS syntax and download a JSON report. This does not check visual rendering or browser compatibility.

✓

SCSS Validator

Check SCSS syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Less Validator

Check Less syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

XML Validator

Check XML syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

SVG Validator

Check SVG syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

JSON Validator

Check JSON syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

JSON5 Validator

Check JSON5 syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

JSONC Validator

Check JSONC syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

YAML Validator

Check YAML syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

TOML Validator

Check TOML syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Markdown Validator

Parse Markdown and download a JSON report. Ordinary prose is valid; this is not a style or link checker.

✓

MDX Validator

Check MDX syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

LaTeX Validator

Check LaTeX syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyLaTeX Validator CLI details →
✓

GraphQL Validator

Check GraphQL syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Vue Validator

Check Vue syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Svelte Validator

Check Svelte syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Astro Validator

Check Astro syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

Solidity Validator

Check Solidity syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

✓

HCL Validator

Check HCL syntax and export a JSON report. Terraform plans, providers and project evaluation are not included.

✓

Terraform Validator

Check Terraform syntax and export a JSON report. Terraform plans, providers and project evaluation are not included.

✓

Dockerfile Validator

Check Dockerfile instruction structure and download a JSON report. Images are not built and shell commands are not executed.

✓

R Validator

Check R syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyR Validator CLI details →
✓

Julia Validator

Check Julia syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyJulia Validator CLI details →
✓

Elixir Validator

Check Elixir syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyElixir Validator CLI details →
✓

Haskell Validator

Check Haskell syntax and download a JSON report of parser findings. Project-wide checks may require a local project.

CLI onlyHaskell Validator CLI details →
✓

XSD Validator

Validate an XML Schema (XSD) definition and download a JSON report. External resource access is disabled.

✓

JSON Schema Validator

Validate a JSON Schema definition against its declared draft and download a JSON report. This checks the schema, not instance data.

✓

CSV Validator

Check CSV quoting and consistent field counts across rows, then download a JSON validation report.

✓

OpenAPI Validator

Check OpenAPI document structure and local JSON Pointer references. Remote references are not fetched.

✓

AsyncAPI Validator

Check AsyncAPI document structure and local JSON Pointer references. Remote references are not fetched.

DeveloperMinifiers

9
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JavaScript Minifier

Minify JavaScript source to produce a compact file for distribution. Review the result before using it in your project.

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TypeScript Minifier

Compile TypeScript to minified JavaScript. TypeScript types are removed and JSX is transformed; keep the original source.

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JSX Minifier

Compile JSX to minified JavaScript. TypeScript types are removed and JSX is transformed; keep the original source.

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TSX Minifier

Compile TSX to minified JavaScript. TypeScript types are removed and JSX is transformed; keep the original source.

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HTML Minifier

Minify HTML source to produce a compact file for distribution. Review the result before using it in your project.

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CSS Minifier

Minify CSS source to produce a compact file for distribution. Review the result before using it in your project.

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JSON Minifier

Minify JSON source to produce a compact file for distribution. Review the result before using it in your project.

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SVG Minifier

Minify SVG source to produce a compact file for distribution. Review the result before using it in your project.

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GraphQL Minifier

Minify GraphQL source to produce a compact file for distribution. Review the result before using it in your project.

DeveloperRegular expressions

1
✓

Regex Tester

Test JavaScript regular expressions locally, highlight matches and inspect capture groups or replacements.

File inspectorInspect files & URLs

4
✓

File Type and Metadata Inspector

Inspect file signatures, format information and supported internal structures in a downloadable JSON report.

✓

Word and Character Counter

Count text characters, words and lines and save the results in a JSON report.

✓

Calculate checksum

Calculate file checksums locally and compare a file with an expected digest.

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URL Inspector

Inspect URL components, HTTP status, final destination and visible headers. Browser redirect details are limited.

File inspectorMetadata

2
✓

Edit File Metadata

Edit title, author, subject, keywords and comments in PDF, JPEG and PNG files locally in your browser. Image pixels are not recompressed.

✓

Remove File Metadata

Clear descriptive metadata from PDF, JPEG and PNG files locally in your browser. Review the output: embedded files and visible content are not anonymized.

File inspectorText cleanup

1
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Remove Text Formatting

Remove formatting from pasted text, HTML, Markdown or Word files. Copy plain text or download UTF-8 TXT locally.

File inspectorText encoding

1
✓

Text Encoding Converter

Convert a text file between supported character encodings, including UTF-8, UTF-16 and legacy encodings.

SecurityEncryption

2
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Encrypt Files and Folders

Encrypt files or a folder into a password-protected ZIP with AES-256 encryption, compatible with 7-Zip and WinZip.

✓

Decrypt Files and Folders

Restore files from an AES-256 encrypted ZIP using its password.

SecurityDigital signatures

1
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Verify digital signature

Check PDF and CMS/P7M/P7S signature cryptography offline, separately from certificate trust.

OCRSearchable PDF & Word

2
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OCR to PDF

Make scanned PDFs and images searchable with local OCR. Download a PDF with selectable text.

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OCR to Word (DOCX)

Extract text from scanned PDFs or images into Word (DOCX) locally. Review recognition errors.

OCRText & markup exports

4
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OCR to Markdown

Extract text from scanned PDFs or images into Markdown locally. Review recognition errors.

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OCR to LaTeX

Extract text from scanned PDFs or images into LaTeX locally. Review recognition errors.

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OCR to HTML

Extract text from scanned PDFs or images into HTML locally. Review recognition errors.

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OCR to JSON

Extract text from scanned PDFs or images into JSON locally. Review recognition errors.

QR codes & barcodesCreate QR codes

4
✓

Text to QR Code Generator

Create a QR code containing your text, entirely on your device. Export PNG, JPEG or SVG with configurable colors and error correction.

✓

URL to QR Code Generator

Create a scannable QR code for an HTTP or HTTPS link without uploading it to a server.

✓

Wi-Fi QR Code Generator

Share a Wi-Fi connection with a QR code for personal, open, hidden or enterprise networks.

✓

vCard QR Code Generator

Create a vCard 3.0 or 4.0 contact QR code with names, phone numbers, emails and addresses. Only completed fields are included.

QR codes & barcodesBarcodes

3
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Barcode Generator

Create Code 128, Code 39, EAN-13, EAN-8, UPC-A, ITF and ISBN-13 barcodes locally, with PNG, JPEG or SVG output.

✓

Barcode Scanner

Read standard linear barcodes from an image or your camera and export the identifier and detected format as JSON.

✓

Barcode to Text

Extract the identifier stored in a standard linear barcode image and save it as text, preserving leading zeros.

QR codes & barcodesScan & decode QR codes

2
✓

QR Code Scanner

Read QR codes from an image or your camera, locally in your browser, and export their contents as JSON.

✓

QR Code Decoder

Decode a QR image to reveal its stored text, link, Wi-Fi credentials, contact card or JSON data.

QR codes & barcodesContact cards

1
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vCard Generator

Create an importable vCard 3.0 or 4.0 contact file with names, phone numbers, emails and addresses.

VideoDownloads

1
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Video Downloader

Download videos directly to your device.

VideoConversion

2
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Video Converter

Convert video to MP4, WebM, MKV, MOV, AVI or GIF locally in your browser. Re-encoding can change quality.

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MP4 to MP3

Extract the first audio track of an MP4 as MP3 at 192 kbps locally.

VideoTranscription

1
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Video to text

Transcribe video audio locally with multilingual Whisper and download text with timestamps.

VideoEdit video & audio

7
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Extract audio from video

Save the first audio track of a video as an MP3 on your device.

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Remove audio from video

Export a video without any audio tracks, locally on your device.

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Trim video

Keep a selected time range from a video and download a new MP4.

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Video to frames

Extract a sequence of PNG frames from a video on your device.

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Video Compressor

Reduce video file size locally with FFmpeg and export MP4.

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Change Video Speed

Speed up or slow down a video while keeping its audio synchronized and preserving pitch.

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Video to GIF Converter

Turn a short video clip into a looping GIF entirely on your device.

AudioDownloads

1
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Audio Downloader

Download audio from direct links or accessible pages. YouTube is not supported in the browser.

AudioConversion

1
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Audio Converter

Convert audio-only files to MP3, WAV, FLAC, OGG, AAC or M4A locally in your browser.

AudioTranscription

1
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Audio to Text Transcription

Transcribe audio locally with multilingual Whisper and download text with a timestamp report.

Archives

1
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Archive Converter

Repackage supported archives as ZIP, TAR, TAR.GZ, TAR.BZ2 or TAR.XZ. The input format is detected automatically; just choose the output format.

Create & Share

3

Whiteboard

Sketch, write notes and organize ideas. Save .1kit files or share an expiring read-only copy.

Share a message

Personalize a message and share an expiring, read-only link with an optional password.

Short URL

Create expiring short URLs with random or custom names.

License checksDocuments

4
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PDF License & Copyright Checker

Inspect license and copyright declarations in PDF metadata. Unverified estimate; confirm the source and full license before use.

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Word License & Copyright Checker

Inspect license and copyright declarations in Word document properties. Unverified estimate; confirm the source and full license before use.

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PowerPoint License & Copyright Checker

Inspect license and copyright declarations in PowerPoint presentation properties. Unverified estimate; confirm the source and full license before use.

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Excel License & Copyright Checker

Inspect license and copyright declarations in Excel spreadsheet properties. Unverified estimate; confirm the source and full license before use.

License checksImages, audio & video

3
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Video License & Copyright Checker

Inspect license and copyright declarations in video metadata. Unverified estimate; confirm the source and full license before use.

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Audio License & Copyright Checker

Inspect license and copyright declarations in audio metadata. Unverified estimate; confirm the source and full license before use.

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Image License & Copyright Checker

Inspect license and copyright declarations in image metadata. Unverified estimate; confirm the source and full license before use.

License checksFonts & e-books

2
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Font License & Copyright Checker

Inspect license and copyright declarations in font name tables. Unverified estimate; confirm the source and full license before use.

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EPUB License & Copyright Checker

Inspect license and copyright declarations in EPUB package metadata. Unverified estimate; confirm the source and full license before use.

License checksCode, projects & datasets

2
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Code & Project License & Copyright Checker

Inspect license and copyright declarations in code projects and archives. Unverified estimate; confirm the source and full license before use.

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Dataset License & Copyright Checker

Inspect license and copyright declarations in dataset metadata and documentation. Unverified estimate; confirm the source and full license before use.

DesignColors

3
✓

Color Palette Generator

Create five-color palettes with six harmonies, perceptual color controls and text contrast checks.

✓

Color Picker

Read a six-digit HEX color from TXT or sample an EXIF-oriented image pixel. Reports visible sRGB, original RGBA, OKLCH and text contrast. Transparent pixels are composited on white.

✓

Extract Image Colors

Median-cut dominant colors from a bounded image sample. Excludes fully transparent pixels; partial transparency is composited on white. Color fractions describe the sample, not semantic objects.

DesignFonts

1
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Font Converter

Convert supported TTF, OTF, WOFF and WOFF2 font files. The input format is detected automatically; just choose the output format. Font-specific compatibility may vary.

Install OneKit

Keep OneKit in its own app window, with a shortcut on your device.