Text Diff Checker
Compare two texts online and see differences highlighted. Free text diff checker - find changes between two paragraphs, documents, or code snippets instantly.
How to Use Text Diff Checker
- Paste your original text in the left field
- Paste the modified text in the right field
- Differences are highlighted automatically
- Green shows additions, red shows deletions
- Use it to compare code, documents, essays, or any text
About Text Diff Checker
Compare two pieces of text side-by-side and see exactly what changed. Our diff checker highlights additions in green and deletions in red, making it easy to spot every modification. Perfect for comparing document versions, reviewing code changes, checking essay revisions, verifying contract edits, or finding differences in any text content. All processing happens in your browser for complete privacy - your text is never uploaded to any server.
Frequently Asked Questions
How are differences highlighted?
Added text is highlighted in green, removed text in red, and unchanged text remains normal. Changes are shown line by line for easy review.
Does this work with large texts?
Yes, but very large texts (over 100KB) may take a moment to process. For best performance, keep texts under 50KB each.
Can I compare files directly?
Currently you need to paste text content. Copy the contents from your files and paste them into each field. File upload may be added in the future.
Is my text data secure?
Yes, all comparison happens locally in your browser. Your text is never sent to any server, making it safe for sensitive documents like contracts or code.
What can I use this diff checker for?
Common uses include comparing code versions, reviewing document edits, checking essay changes, verifying contract modifications, finding differences between config files, and debugging text output.
Does this work offline?
Yes! Once the page loads, the diff checker works entirely in your browser with no internet connection required.
How do I compare two texts online for free?
Paste the original text in the left box and the modified text in the right box above. Differences are highlighted automatically - additions in green, deletions in red. No signup or download required.
Can I compare two paragraphs or documents?
Yes, paste any text in both fields - paragraphs, full documents, code, or even single words. The diff checker finds all differences regardless of text length.