Spot every change instantly.
Paste the original text on one side and the edited version on the other — Diff Viewer computes a proper longest-common-subsequence line diff and renders it unified: green for added lines, red for removed, quiet gray for unchanged, with live added/removed counters. Great for config files, prose revisions, and code snippets. Everything runs in your browser; nothing is uploaded.
⚙️ Settings & Customization
- Theme
- Language
- Size
- Transparent background
- 🎨 Accent Color
Changes apply live — the embed link and preview update instantly.
📖 How to embed in Notion
- Copy the embed link from the sidebar on the right.
- Open the Notion page you want the widget on and type
/embed. - Paste the link into the embed dialog and press
Embed link. - Drag the embed's bottom edge to resize it to taste.
🆕 What's new in v1.0
- ✦ True LCS line diff, unified view
- ✦ Green added · red removed · live counters
- ✦ Handles up to 400 lines per side
- ✦ 100% in-browser — nothing uploaded
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