Free Text Diff Checker Online
Use this free text diff checker to compare two texts and highlight the differences. Fast, private, and works in your browser.
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What is Text Diff Checker?
Text Diff Checker compares two blocks of text and highlights what was added or removed. It is useful for reviewing edits, comparing versions, and spotting changes in code or documents. The comparison runs in your browser.
How to use this tool
- Paste the original text on the left.
- Paste the changed text on the right.
- View the highlighted differences.
Features
- Highlight added and removed text
- Line-by-line comparison
- Works for prose and code
- Clear color-coded result
- Runs entirely in your browser
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
Does it compare by line or by word?+
It compares line by line and highlights the added and removed lines.
Can I compare code?+
Yes. It works for any plain text, including source code.
Is my text uploaded?+
No. The comparison happens entirely in your browser.
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