Software licenses.
Acknowledgments and license information. Legal and licensing questions: legal@onekit.org. Questions about the Open Source (PolyForm Shield 1.0.0) core: developers@onekit.org.
Open Source (PolyForm Shield 1.0.0).
The OneKit core is Open Source (PolyForm Shield 1.0.0). You can inspect and contribute to its code.
You may use, modify and redistribute the core for permitted purposes, including commercial and internal use. You may not use it to provide a product or service that competes with the software or with a product the licensor or its affiliates provides using the software; free offerings and different platforms or interfaces can also compete. When sharing copies, include the license text or its URL and any Required Notice lines supplied with the software. The full license governs, including its exceptions for new and discontinued products, patent terms and warranty disclaimer. Here, “Open Source (PolyForm Shield 1.0.0)” describes published source under these terms; the noncompete restriction means this is source-available software rather than unrestricted open source under the Open Source Definition.
© 2026 Mattia PiazzalungaProprietary webapp.
The webapp’s original code, interface and design are proprietary. Reuse requires written permission. Read the website license and AI use policy.
© 2026 Mattia PiazzalungaThird-party notices
37 componentsEach component retains its own license and copyright notices. The FFmpeg source archive includes build and replacement instructions; the website license preserves the applicable LGPL modification and debugging rights.
- PDF/A conversion and validationpdftopdfa 0.9.24 / pikepdf 10.17.0Separately loaded Python packages and QPDF WebAssembly; source hashes and rebuild instructions are providedMPL-2.0 / MPL-2.0+; bundled dependencies and resources retain their licenses
- Pyodide314.0.7MPL-2.0
- PDFium WebAssembly3.0.0PDF processing uses the same engine family as the CLIMIT / BSD-3-Clause
- PDF.js6.4.299Apache-2.0
- CPythonPSF
- Inter© 2016 The Inter Project AuthorsOFL-1.1
- Tree-sitter HCL grammar1.2.0Apache-2.0
- Primer Octicons© 2026 GitHub Inc.MIT
- License inspection noticesOriginal dependency noticesApache-2.0 / BSD-2-Clause / PSF-2.0
- license-expression30.4.4SPDX expression syntax; not legal verificationApache-2.0
- boolean.py5.0BSD-2-Clause
- defusedxml0.7.1Bounded XML inspectionPSF-2.0
- olefile0.47Legacy Office metadataBSD-2-Clause
- pypdfBSD-3-Clause
- Pillow13.0.0Compiled locally for PyodideMIT-CMU
- Brotli1.2.1MIT
- NumPy2.3.5Compiled without external BLAS/LAPACKBSD-3-Clause
- Segno1.6.6BSD-3-Clause
- python-barcode0.16.1MIT
- ZXing JavaScript0.23.0Apache-2.0
- ZXing C++ WebAssembly3.1.6The same decoder engine family used by the CLIMIT / Apache-2.0
- python-docxMIT
- python-pptxMIT
- openpyxlMIT
- PyCryptodome3.24.1BSD / public domain
- stream-zip0.0.84MIT
- stream-unzip0.0.91MIT
- stream-inflate0.0.12MIT
- fontToolsMIT
- Browser processing enginesPrettier, esbuild, Ruff, ClangFormat, gofmt, shfmt, Dart, StyLua, SQL formatter, GraphQL, SVGO, html-minifier-terser, UTIF and PptxGenJSMIT / BSD / Apache-2.0 and included notices
- FFmpeg WebAssembly5.1.10Video/audio processing; exact sources, dependency sources and rebuild/replacement instructions are includedLGPL-2.1-or-later and permissive components
- Transformers.js4.3.1Local ONNX inference; U2Net and Whisper tiny model notices belowApache-2.0
- Local AI modelsU2Net for background removal and Whisper tiny for multilingual transcriptionApache-2.0 / MIT
- Browser OCR7.0.0Tesseract.js, Tesseract, Leptonica and language dataApache-2.0 / BSD-2-Clause
- SQL Python enginessqlparse 0.6.0 / SQLFluff 4.4.0Local Python SQL formatting and syntax validationUpstream terms
- Syntax grammars0.1.17Java, C, C++, Rust and Ruby syntax parsingMIT / Unlicense
- WebAssembly upstream enginesIncluded upstream licenses
