Diff Sharer

Paste a unified diff — or compare two texts side by side — and get a shareable link instantly. No server, no database, no account.

🔗 Live demo

How it works

The diff is compressed with LZ-String and stored entirely in the ?d= query parameter. Opening the URL renders the diff immediately using diff2html. Nothing leaves your browser.

Features

• Paste a diff — drop in any unified diff and share
• Compare texts — paste original and modified side by side, diff is generated for you
• Zero backend — the URL is the database; works offline after first load
• Dark mode — remembers your preference
• Deploys to GitHub Pages out of the box

Development

bun install
bun run dev          # http://localhost:5173
bun run build        # production build → dist/
bun run preview      # preview the build
bun run typecheck    # tsc --noEmit
bun run test         # unit tests (Vitest)
bun run test:e2e     # browser tests (Playwright)
bun run check        # lint + format (Biome)

First e2e run needs the browser: bunx playwright install chromium

Deploy

Push to main — the CI workflow builds and deploys to GitHub Pages automatically. Update BASE in src/config.ts if hosting under a different path.

Stack

Vite · Alpine.js · Tailwind CSS v4 · daisyUI · pinecone-router · TypeScript · Bun · Biome · Vitest · Playwright

License

MIT · Created by vzsoares