Compare two texts online and instantly highlight additions, removals and unchanged content.
Useful for document revisions, article edits, code snippets, contracts, copied text verification and content reviews.
Compare by words or lines
Works in the browser
Great for text, docs and code
No upload needed
Compare two texts side by side
Paste the original text on the left and the modified version on the right
Original text
0 characters · 0 words · 0 lines
Modified text
0 characters · 0 words · 0 lines
Ready to compare
Comparison mode
Word
Added segments
0
Removed segments
0
Unchanged segments
0
Comparison result
Added
Removed
Unchanged
Differences will appear here after comparison
Document comparison
Useful for checking article revisions, contracts, reports, translated content and edited paragraphs.
Code comparison
Quickly see what changed between code snippets, configuration files or copied console output.
Private by default
Everything runs directly in your browser with no server upload required for the comparison itself.
Why use this online text diff checker
A text diff checker helps you compare two versions of text and quickly see what changed.
Instead of reading both versions manually, you can paste them side by side and identify edits instantly.
This is helpful for writers, developers, editors, students, QA testers and anyone reviewing revisions.
This free online diff tool supports comparing by words or by lines. Word comparison is useful for short text,
sentences, paragraphs and rewritten content. Line comparison is better for structured content, logs, code snippets
or formatted documents where each line matters.
Text Diff Checker FAQ
How does this text comparison tool work?
Paste the original text and the modified text, then run the comparison. The result highlights added, removed and unchanged segments.
Should I compare by words or by lines?
Use word mode for normal paragraphs and line mode for structured text, logs, lists or code where each line matters.
Can I compare code snippets here?
Yes. It works for code snippets, though it is a lightweight browser tool and not a full git-style diff viewer.
Does this tool upload my text?
No comparison API is used here. The comparison runs directly in your browser on the current page.