Confidential drafts remain private
Compare unreleased copy, code, or configuration without sending it to a diff service.
Local-only text comparison
Compare text without uploading it.
Find additions, removals, and changed blocks in drafts, configs, transcripts, or code while the text stays in your browser.
Use the free toolRuns in this browser
text compare
Choose the comparison unit and normalization rules before running the diff. The original inputs remain unchanged and are never transmitted.
Result
The jobs this tool completes
Built around the failure points.
Choose meaningful granularity
Switch among line, word, and character units so the diff matches the material.
Export evidence
Copy or download a unified representation with counts and the selected normalization rules.
Workflow
From input to an auditable output.
- Paste the original and changed text into separate labeled panels.
- Choose line, word, or character mode and optional normalization.
- Review additions, removals, unchanged spans, similarity, and an exportable unified diff.
Learn the details
Use the result with fewer surprises.
Guide
Line diff vs word diff vs character diff
Choose the comparison granularity that reveals meaningful changes without drowning the result in noise.
Read guide →GuideHow to compare confidential text locally
A practical privacy checklist for comparing contracts, source code, credentials-adjacent configuration, and unpublished drafts.
Read guide →Common questions
What this tool does—and does not do.
Confidential drafts remain private
Compare unreleased copy, code, or configuration without sending it to a diff service.
Choose meaningful granularity
Switch among line, word, and character units so the diff matches the material.
Export evidence
Copy or download a unified representation with counts and the selected normalization rules.
Does this guarantee the result will be accepted elsewhere?
No. The tool completes and explains its calculation or transformation, but another platform can apply different limits, rules, encoders, or policies. Verify consequential output in the destination.
Ready
Compare texts
Return to the tool with your inputs still in this tab.