📃 Text Diff
Compare text side by side — highlights every change
✓ Free Forever · ✓ No Signup · ✓ No Upload · ✓ Works Offline
🔒 Your image never leaves your device. All processing happens locally in your browser using JavaScript diff algorithm. No upload, no server, no tracking.
Features
- Three Diff Modes — Compare text by characters, words, or lines — choose the granularity that fits your needs.
- Color-Coded Output — Additions highlighted in green, deletions in red, unchanged text in gray.
- Change Statistics — See the count of additions, deletions, and unchanged segments at a glance.
- Swap & Clear — Swap original and modified text or clear both fields instantly.
How It Works
- Enter original text — Paste the original version of your text in the left panel.
- Enter modified text — Paste the modified version in the right panel.
- Review differences — See every change highlighted with color coding. Switch between character, word, and line modes.
Use Cases
- Compare two drafts of an article or document
- Spot changes between code versions without Git
- Verify edits in contracts or legal documents
- Compare API responses or configuration files
Frequently Asked Questions
Which diff mode should I use?
Character mode shows the most detail. Word mode is best for prose and natural language. Line mode is ideal for code and structured text.
Can I compare large texts?
Yes. The diff algorithm runs efficiently in your browser. Texts up to tens of thousands of characters are handled smoothly.
Related Tools
- 🔢 Word Counter — Analyze text — word count, characters, reading time, and top words
- 🧹 Remove Duplicates — Remove duplicate lines from text with sorting and trimming options
- 🔍 Regex Tester — Test and debug regular expressions with real-time matching
💬 Bug, idea, or just to say hi? Tell Milo 🐨 · [email protected]