Text Diff Checker
Find differences between two versions of text, configuration, or source code with a side-by-side diff. Paste content or load files to review additions, deletions, and changed lines before sharing or deploying.
How to use this tool
- Paste the original version in the left panel and the modified version in the right panel.
- Adjust word wrapping, case sensitivity, or whitespace handling when the comparison needs a different view.
- Review the highlighted result and use the summary to confirm what changed.
Tips
- Compare focused sections when large files make the result difficult to scan.
- Ignore whitespace only when formatting changes are not part of the review you need to perform.
Frequently asked questions
What can I compare with this diff tool?
You can compare plain text, source code, configuration files, and other UTF-8 text that fits in the browser editor.
Is my text uploaded?
No. The comparison runs in your browser.