Compare

Compare text files ✓

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

⌑ Files stay on your device
Two sides. Every change.

How to use Compare text files

  1. Choose the original and changed text files, or paste text when supported.
  2. Compare the two versions and review the highlighted changes.
  3. Copy individual lines in either direction, undo a merge, or download a version and its patch.

Formats and requirements

Input formats
text files
Output
JSON
Availability
Free in your browser and through the CLI
Files per operation
2
Browser file limit
1.91 MiB per file, 32 MiB total

What to expect

Notebook comparison can include Markdown, code or both. LaTeX text mode omits commands.

Do my files leave my device?

No. File processing runs locally in your browser worker. OneKit does not receive your input files or results. Required public processing libraries may download when you first use the tool.

File privacy and local processing →