Launched this week
JS Playground
Minimal in-browser JS playground. No signup, no bloat.
1 follower
Minimal in-browser JS playground. No signup, no bloat.
1 follower
Free, minimal playgrounds for JavaScript, TypeScript, Node.js and Next.js. Run code instantly in your browser with a DevTools-style console, top-level await and a live HTML/CSS/JS mode. No signup, and your code never leaves your device
Free
Launch Team
Render Sandboxes: a computer for every agentGive every agent its own machine. Starts in under a second
Promoted
Hey Product Hunt! 👋
I built JS Playground because most online code runners felt heavy, with logins, ads and slow load times. I wanted something clean: open a tab, write code, see the result.
What it does:
Runs instantly in your browser, with no install and no server round-trip
DevTools-style console with expandable objects, console.table() and error stack traces
Trailing expression evaluation: put [1,2,3].map(x => x * 2) on the last line and the result prints without console.log
Top-level await, so you can await fetch(...) without a wrapper
Built-in REPL prompt with arrow-key history
Web mode with HTML, CSS and JS tabs and a live sandboxed preview
Responsive layout for phones and tablets
100% client-side. Your code never leaves your browser.
Jump straight into a playground:
JavaScript: https://jsplayground.js.org
TypeScript: https://jsplayground.js.org/typescript-playground
Node.js: https://jsplayground.js.org/nodejs-playground
Next.js: https://jsplayground.js.org/nextjs-playground
Who it’s for: students learning JavaScript, developers testing quick snippets, and anyone who wants a distraction-free scratchpad.
It’s still growing, so I’d love your feedback. What would make this part of your daily workflow?
Thanks for checking it out! 🙏