Text Diff Guide: Compare Two Texts Online

Text diff comparison tool — illustration

The TetraKits Text Diff runs entirely in your browser — free, private, and ready on mobile or desktop.

Overview

Not every text comparison needs a full git diff. Config tweaks, contract revisions, and email draft edits benefit from a quick side-by-side check — paste both versions and see exactly what changed without cloning a repository.

How to use the text diff

Paste original and revised text to see line-by-line differences — additions, deletions, and changes highlighted in a readable diff output, all processed locally.

Common use cases

Paste original and revised text to see line-by-line differences — additions, deletions, and changes highlighted in a readable diff output, all processed locally. Bookmark the tool for quick access during projects.

FAQ

Does this do character-level diff?

This tool compares line by line. Put each change on a separate line for clearest results.

Can I diff code files?

Yes. Paste code snippets or config files into both fields and compare.

Is there a line limit?

Browser memory applies. Very large files (100K+ lines) may be slow — split into sections if needed.

Can I export the diff?

Copy the diff output from the result panel for pasting into tickets or emails.

Is this text diff tool free?

Yes. Unlimited comparisons with no signup.