Compare two texts side by side and instantly see what's changed. Highlighted additions, deletions, and modifications with line-level diff — all processed locally in your browser.
How to Use Text Diff Checker
- 1Paste the original text in the "Original" box
- 2Paste the modified text in the "Changed" box
- 3The diff highlights instantly — additions in green, deletions in red
- 4Review line-by-line changes and copy the diff result
Features
- Side-by-side text comparison with instant diff highlighting
- Color-coded changes: green for additions, red for deletions
- Line-level diff with word-level precision
- Copy diff result or individual sections
- All processing in your browser — text never uploaded
Frequently Asked Questions
What kind of changes does it detect?
It detects added lines, removed lines, and modified lines at the word level. Each change is color-coded for quick visual scanning.
Is my text sent to a server?
No. All text comparison happens in your browser. Your data never leaves your device.