Paste two texts — see line-by-line differences as you type.
Use this free text diff tool to compare two strings, paragraphs, or code blocks side by side. It highlights added and removed lines as you type, so you can spot changes instantly. Everything runs in your browser — nothing is uploaded.
Paste the original text in the left box and the changed text in the right box. The diff appears automatically with removed lines in red and added lines in green.
Yes. The tool compares line by line, so it works for code, logs, contracts, or any long text.
No. The comparison is done locally in your browser. Your text never leaves your device.