About the Diff Checker
See what changed between two versions of code, configs or documents. Lines are aligned with original and modified line numbers, additions and deletions are color-coded, and you can export a unified diff (.patch) usable with git apply or patch.
How to use it
- Paste the original and modified text.
- Optionally ignore whitespace changes.
- Review the diff or download a .patch file.
Good to know
- Comparison is line-based. For word-level edits inside prose, use Text Compare.
- Your data is processed in the browser and never sent to a server, so it is safe to paste payloads that contain tokens or personal data.