Character Difference Counter
Character-level diff tool that compares two texts side by side and highlights added, removed and changed characters in color. It also counts the exact number of differences, free in your browser.
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Last updated: 2026 · Free online tool
What is Character Difference Counter?
Character-level diff tool that compares two texts side by side and highlights added, removed and changed characters in color. It also counts the exact number of differences, free in your browser.
How to Use
- 1Input— Enter the two strings you want to compare.
- 2Results— Review the character-level differences.
- 3Copy— Copy the results to use.
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Frequently Asked Questions
A free online tool that compares two strings at the character level.
Yes, it is completely free.
No. All processing happens in your browser.
Yes, the responsive design works on mobile devices.
Yes, it works offline as it uses static data.