Paste the original text in the first box and the updated text in the second box.
Free browser text tool
Text Diff Checker
Compare two text snippets side by side with highlighted additions and deletions. Use it instantly without an account.
Your text stays on this device. Nothing is uploaded.
Tool guide
How it works
Follow these steps to use Text Diff Checker.
Choose word-by-word or line-by-line comparison mode.
Review highlighted additions in green and deletions in red, then copy the result.
File or text
Tool action
Your result