dittu: Clone Any Website
Turn any website into an editable Next.js or Astro project, verified pixel by pixel.
Layout, CSS, fonts, images and scroll animations. Not the backend. One CLI, one MCP server, and skills for your coding agent.
Quick start · How it works · Benchmarks · Docs
$ dittu clone https://gole.codes --build
› Capturing https://gole.codes
1,680,755 chars of markup, 6 stylesheets, 33 animations, 13 JS-responsive elements
✓ Static preview → dittu-out/gole.codes/preview
✓ Next.js project → dittu-out/gole.codes/next
✓ Astro project → dittu-out/gole.codes/astro
Visual match (1 − differing pixels / total)
preview /home 1440px 99.95%
next /home 1440px 99.95%
astro /home 1440px 99.95%
preview /home 390px 99.89%
next /home 390px 99.89%
astro /home 390px 99.89%
✓ All checks ≥ 95% (lowest 99.89%)
Quick start
Set up your agent
npx @manishtamang/dittu setup
Registers the dittu MCP server and installs the skills for every agent it
finds: Claude Code, Cursor, Gemini CLI, Codex. Check your machine first
with npx @manishtamang/dittu doctor (on Linux/WSL you may need
sudo npx playwright install-deps chromium).
Ask your agent
Clone https://gole.codes into Next.js and make the pricing cards a reusable component.
The agent calls clone_website, reads the scores, refactors the generated
components, and calls verify_clone to prove nothing visual changed.
Use the terminal
npx @manishtamang/dittu # interactive: banner, then pick URL, frameworks, pages…
npx @manishtamang/dittu clone https://gole.codes -y # no questions: preview + Next.js + Astro, scored
npx @manishtamang/dittu clone https://gole.codes -p 5 --build # crawl 5 pages, build and score the apps
npx @manishtamang/dittu clone https://gole.codes -s tailwind # Tailwind classes where lossless, rest stays CSS
npx @manishtamang/dittu verify dittu-out/gole.codes --targets next
npx @manishtamang/dittu serve dittu-out/gole.codes
Update dittu
npx @manishtamang/dittu@latest setup
How dittu works
Most cloners screenshot a page and ask an LLM to redraw it. dittu copies what the browser actually rendered, then checks the result:
- Capture: Chromium loads the page, scrolls it so lazy content and scroll reveals fire, then freezes JS timers so carousels hold still. A second render at 390 px records layout that JS computes per viewport.
- Serialize the live DOM, not the server HTML. Next.js/React sites come out as their final markup without hydration scripts or RSC payloads. Nesting the HTML parser would restructure gets repaired, so React hydrates cleanly.
- Keep the original CSS in cascade order, including CSS-in-JS rules that exist only in the CSSOM. Media queries, hover states and keyframes keep working.
- Download every asset from the same session and rewrite URLs.
- Export to a static preview, a Next.js App Router project (JSX) and an Astro project, split into section components.
- Replay motion: recorded scroll reveals, Framer Motion
animatecalls and loops run again through a 2 KB runtime. - Verify: screenshot original and clone the same way at desktop and mobile
and score them.
--buildscores the built apps, not just the preview.
Details: docs/architecture.md.
What you can clone
Benchmarks
Methodology and limits: docs/fidelity.md.
FAQ
Does it copy the backend? No. Data fetching, auth, APIs and form handling are not copied. You get the frontend, ready to wire to your own logic.
Why is the generated JSX full of {" "}? Whitespace between inline elements
changes layout in HTML but is dropped by JSX. dittu keeps it explicit so the clone
renders identically. Refactor freely, and re-run verify to check.
Can I get Tailwind classes instead of CSS? Yes: --styling tailwind. Every
rule that can be expressed exactly becomes Tailwind utilities (sites built with
Tailwind v4 keep their own classes); the rest stays CSS, so scores don't drop.
See Tailwind output.
Is the 95% score honest? It's raw pixel identity over the full page, including height differences, at desktop and mobile. Diff images are saved next to the scores so you can check.
Can I clone any site I want? Technically mostly yes. Legally, see the disclaimer.
Documentation
Disclaimer
dittu is for learning, prototyping, design references and migrating sites you own. Cloning a site doesn't give you rights to its brand, copy, images or code. Read DISCLAIMER.md.
Related projects
ditto.site by ion-design takes the same capture-what-the-browser-rendered approach as a hosted API and MCP service. dittu differs by running as a local CLI, keeping the site's original CSS by default (Tailwind output is opt-in and only where it renders identically), exporting Astro alongside Next.js, and scoring every clone with pixel-diff verification.
Contributing
See CONTRIBUTING.md. Agents working in this repo: AGENTS.md.