TetraKitsText 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.
Read: Text Diff Guide: Compare Two Texts Online →
- Free to Use
- No Signup
- Privacy Friendly
How to compare text
- 1
Paste original text
Enter the baseline version in the Text A field — config files, code snippets, or document drafts.
- 2
Paste revised text
Enter the updated version in Text B to compare against the original.
- 3
Run compare
Click Compare to generate a line-by-line diff showing additions, deletions, and changes.
How text diff works
Line diff algorithms compare two texts line by line, marking each line as unchanged, added, removed, or modified.
- Removed lines — present in A but not in B
- Added lines — present in B but not in A
- Changed lines — same position but different content
Tip: For word-level diffs, ensure each logical change is on its own line.
Why Use This Tool?
Line Diff
Clear visual diff for configs, code, and documents.
No Upload
Both texts stay in your browser — nothing sent to servers.
Quick Review
Compare draft revisions before sending to collaborators.
Private
Sensitive documents never leave your device.
Frequently Asked Questions
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.
Spot Changes Without Git
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.
