Text Diff Checker
Text ToolsFind added, removed, and changed lines between two texts.
Comparing…
Lines prefixed + were added, - removed, and · unchanged.
What is Text Diff Checker?
Text Diff Checker finds added, removed, and changed lines between two versions of a document.
How to use Text Diff Checker
- 1 Paste the two versions.
- 2 Run the comparison.
- 3 Review each difference.
Supported formats and limits
- Input: two texts
- Output: added/removed/changed lines
- Runs in your browser
Common uses
- Review changes between two files line by line.
- Confirm that an edit changed only what you intended.
- Compare configuration or code snippets.
Things to know
- It highlights textual differences, not semantic ones.
- Whitespace differences may appear as changes.
Privacy and file handling
Your text is compared locally and never uploaded.
Frequently asked questions
Is this the same as Text Comparison?
They are similar. Both highlight differences; the diff checker focuses on line-level changes.
How is this different from text comparison?
Both highlight changes; the diff checker focuses on a precise, line-by-line view of additions and deletions.
Can I ignore whitespace differences?
Yes. You can choose to ignore whitespace when comparing.
Is my text uploaded?
No. It runs in your browser.
Related tools
Text Comparison
Compare two blocks of text and highlight the differences line by line.
Find and Replace
Find and replace text with optional case sensitivity and regex support.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
JSON Formatter
Format, validate, and minify JSON with clear error messages.