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Both texts are compared in your browser and are never sent to our servers.
About Text Diff Checker
Text Diff Checker compares two versions of a text and highlights what was added and what was removed, line by line or word by word.
Tips for best results
- Use word mode to see small edits inside a sentence.
- Turn on Ignore extra spaces to skip changes that are only spacing.
- To compare two PDF files, use the Compare PDF tool.
How to use Text Diff Checker
- 1
Paste both texts
Put the original on the left and the changed text on the right.
- 2
Pick lines or words
Compare line by line for documents, or word by word for short texts.
- 3
Read the changes
Green shows additions and red shows removals.
Frequently asked questions
Can I compare code?
Yes. Line mode works well for code and configuration files.
How long can the texts be?
Up to about 5,000 lines or words each.
Is my text uploaded?
No. This tool runs inside your browser, so your data is processed on your own phone or computer and is not sent to our servers.