Free Text Diff Checker
Compare two pieces of text and see additions, deletions, and changes highlighted line by line.
+0-0
// enter text on both sides to see differencesTry this example
A teammate sent you an updated config file and you want to see exactly what they changed.
Sample input
Original: log_level = info max_connections = 100 Modified: log_level = debug max_connections = 200 timeout = 30
Steps
- 1Paste your current config in the left box.
- 2Paste their version in the right box.
- 3Review the highlighted differences. Green text was added, red text was removed.
How to use
- 01Paste the original text into the left box.
- 02Paste the modified text into the right box.
- 03See the diff with green for additions and red for deletions.
FAQ
Does it work for code?▼
Yes. The diff is character-level so it handles code, prose, configs, JSON, anything text-based.
How big can the inputs be?▼
Up to a few hundred KB on each side. Very large inputs slow down because the algorithm is O(N*M).
Is my text uploaded?▼
No. The diff runs entirely in your browser using the jsdiff library.