Text Diff Checker
Compare two texts and highlight exactly what was added, removed or changed.
Free to use · No sign-up · Runs in your browser · Your data is never uploaded.
What the Text Diff Checker does
The text diff checker compares two blocks of text and highlights the differences, so you can see precisely what changed between two drafts or versions.
How it works
The tool aligns the two texts line by line and marks lines that were added, removed or left unchanged. Added lines are highlighted in one colour and removed lines in another, giving you a quick visual diff.
It is useful for reviewing edits, comparing two versions of a meta description, or checking that a change was applied correctly.
How to use the Text Diff Checker
- 1Paste the original text in the first box.
- 2Paste the revised text in the second box.
- 3Run the comparison.
- 4Review the highlighted additions and deletions.
- 5Copy whichever version you want to keep.
Text Diff Checker questions
It compares the two texts line by line and highlights lines that differ, marking them as added or removed.
Yes. It works on any plain text, including code, configuration files and CSV data.
The comparison is line-based, so changes in whitespace within a line are shown as a difference.
Yes. The comparison runs in your browser and nothing is uploaded.
Related SEO tools
Ready to build links that move rankings?
Use our vetted marketplace of 2,000 sites or let us run a done-for-you campaign with white-label reporting.