Text tool
Diff Checker
Compare original and changed text side by side. Instantly see added and removed lines — useful for docs, code snippets, and drafts.
Private by design. Nothing is uploaded. Comparison runs locally in this tab.
How it works
- Paste original text on the left and changed text on the right.
- Click Compare.
- Review green (added) and red (removed) lines.
Frequently asked questions
Is this diff checker free?
Yes. Free text compare with no account.
Do you store my text?
No. Everything stays in your browser.
Is it line-based?
Yes. Differences are highlighted per line for clear reading.
Can I compare code?
Yes for moderate snippets. Very large files may be slow in the browser.