Free HTML CSS JS Playground — live preview, no signup

Write HTML, CSS and JavaScript and see the result instantly in your browser. No signup, no login, nothing installed. Your code is saved right inside the URL, so you can share a whole project with a single link — a clean, free alternative to CodePen, JSFiddle and CodeSandbox.

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Your code lives in the URL — no login, nothing on a server

When you press Share, your HTML, CSS and JavaScript are compressed and encoded straight into the link. There is no account and no server storage: the code travels in the URL itself. Open the link on any device and you get exactly the same code back. It also auto-runs the moment the page loads, so shared links are instantly live.

What you can do

Live preview — see changes instantly as you type (auto-run, or Ctrl+Enter).
No signup, no login — start coding immediately, free forever.
Share via a URL — your code is compressed into the link, no server storage.
26 editor themes — Dracula, Monokai, Nord and more, powered by Monaco (the VS Code editor).
Add libraries — Bootstrap, Tailwind, React, Vue, jQuery, GSAP, Three.js and any custom CDN.
Download as ZIP — export your project as ready-to-run files.
Console & responsive preview — debug JavaScript and test mobile/tablet/desktop widths.
Works on mobile — switch between editor and preview on phones and tablets.

How does it compare to CodePen, JSFiddle & CodeSandbox?

Feature	This playground	CodePen	JSFiddle	CodeSandbox
Free to use	Yes, no limits	Free + paid	Free + paid	Free + paid
Use without an account	Yes	Saving needs an account	Yes	Saving needs an account
Code stored in the shareable URL	Yes — in the URL, no server	Saved on their servers	Saved on their servers	Saved on their servers
Live preview	Yes	Yes	Yes	Yes
Download project as ZIP	Yes	Yes (free account)	No	Yes
Runs entirely in your browser	Yes	Yes	Yes	Partly (cloud VM)

Comparison for general guidance — third-party features change over time.

Frequently asked questions

Do I need to sign up or log in?

No. There is no sign up and no login. Open the playground and start writing HTML, CSS and JavaScript right away — everything runs in your browser.

Is my code stored in the URL?

Yes. When you share, your HTML, CSS and JavaScript are compressed and encoded directly into the link. Nothing is stored on a server — the code lives in the URL, so whoever opens the link gets your exact code.

Can I share my code with a link?

Yes. Click Share to get a URL that contains your whole project. Send it, bookmark it, or paste it anywhere — no account needed on either side.

Does it auto-run as I type?

Yes. Auto-run is on by default, so the live preview updates as you edit. You can turn it off and run manually with the Run button or Ctrl+Enter.

Is it really free?

Yes, completely free with no paywall and no limits. It is a free alternative to CodePen, JSFiddle and CodeSandbox for quick front-end experiments.

Does it work on mobile?

Yes. On phones and tablets you can switch between the editor and the live preview, so you can write and test HTML, CSS and JavaScript on the go.

Web Playground

Your code lives in the URL — no login, nothing on a server

What you can do

How does it compare to CodePen, JSFiddle & CodeSandbox?

Frequently asked questions