Online Text/Code Diff Checker
Online text difference tool. Highlights differences between two texts, clearly showing added, modified, and deleted content. A must-have tool for developers.
Client-side Processing
Fast & Efficient
Developer Tool
Diff Mode:
🔴 Original (Old)
0 chars🟢 Modified (New)
0 charsEnter text above to start comparison
How to compare text differences?
- 1Paste the original (old) text in the left textarea.
- 2Paste the modified (new) text in the right textarea.
- 3Choose a mode: Line (best for code), Word, or Character (highest precision).
- 4Check the highlighted differences below (Red for removed, Green for added).
Diff Tool FAQ
Does it support large files?
The tool runs locally for speed. We recommend files under 1MB to avoid browser lag with complex diff algorithms.
How to find tiny changes?
Switch to 'Character' mode. It tracks every single letter change, making it perfect for finding typos or punctuation errors.