TryJS – Instant JavaScript and TypeScript playground in your browser

Summary: TryJS is a lightweight JavaScript and TypeScript playground that runs entirely in the browser without backend or signup. It supports npm imports, a snippet gallery, shareable URLs, and code-to-image export.

What it does

TryJS transpiles TypeScript using Sucrase, loads npm packages from esm.sh, and executes code in a sandboxed iframe, all within a minimal ~6KB gzip UI.

Who it's for

Developers needing an instant, serverless environment to write and run JS/TS code directly in the browser.

Why it matters

It eliminates loading delays and account requirements by running code client-side, enabling immediate coding and sharing.