Compare Word Documents Online
Upload two DOCX versions and see all differences with tracked changes
Features • Quick Start • Documentation
- 📄 Upload & Compare – Drop two DOCX files and see differences instantly
- 🔍 Track Changes – Insertions (green), deletions (red), format changes (yellow)
- ✨ AI Summary – LLM-powered change descriptions (via Groq)
- ✅ Accept/Reject – Review changes individually via SuperDoc's bubble UI
- 🎨 Format Detection – Catches bold, italic, and other formatting changes
- 📊 File Indicator – Always see which files are being compared
- 💾 Download – Export with tracked changes (MS Word compatible)
- 🛠️ Full Editor – SuperDoc toolbar for additional editing
npm install
npm run devdocker build -t docxdiff .
docker run -p 3000:3000 docxdiff- Next.js 16 – App Router
- SuperDoc – Document editor (superdoc.dev)
- diff-match-patch – Character-level diffing
- Groq – AI summary generation (via Server Action)
- Tailwind CSS – Styling
- Zustand – State management
| Variable | Required | Description |
|---|---|---|
GROQ_API_KEY |
Optional | Enables AI-powered change summaries |
NEXT_PUBLIC_BASE_URL |
Optional | Base URL for SEO metadata |
| Document | Description |
|---|---|
| ARCHITECTURE.md | Project structure and data flow |
| PLANS/final-approach.md | Detailed implementation guide |
| PLANS/limitations.md | Known limitations and workarounds |
MIT © Pablo Schaffner