How to read these pages

The playground runs your code in the browser’s JavaScript engine, not in Bun. Bun’s transpiler, resolver, semver and bundler run as WebAssembly. Everything else (Bun.*, bun:*, node:*) is a JavaScript shim, so coverage is uneven. These pages list what works today.

Label	Meaning
✅ Works	Behaves like Bun for normal use.
🟡 Partial	The common parts work; the notes list what’s missing.
⚪ Stub	Imports fine, but its functions throw or do nothing.
❌ Missing	Not available. Importing it fails, or the property is undefined.
❔ Untested	Expected to work, but not checked yet.

Sections:

• Browsers: which browsers run the playground.
• Bun APIs: the Bun global, bun:sqlite, bun:test, import.meta.
• Node built-ins: every node:* module.
• Toolchain: transpiler, module resolution, CommonJS, bun install, the bundler.
• Frameworks: projects known to run.

The status comes from reading the playground’s source and from the bundled examples, checked in Chrome. Found something wrong? Open an issue.