Node APIs

Deno provides polyfills for a number of built-in Node.js modules and globals.

<a href="/api/node/" class="docs-cta runtime-cta">Explore built-in Node APIs</a>

Node compatibility is an ongoing project - help us identify gaps and let us know which modules you need by opening an issue on GitHub.

{{ await generateNodeCompatibility() }}

Globals

This is the list of Node globals that Deno supports. These globals are only available in the npm package scope. In your own code you can use them by importing them from the relevant node: module.

Global name	Status
AbortController	✅
AbortSignal	✅
Blob	✅
Buffer	✅
ByteLengthQueuingStrategy	✅
__dirname	⚠️ Info
__filename	⚠️ Info
atob	✅
BroadcastChannel	✅
btoa	✅
clearImmediate	✅
clearInterval	✅
clearTimeout	✅
CompressionStream	✅
console	✅
CountQueuingStrategy	✅
Crypto	✅
CryptoKey	✅
CustomEvent	✅
CustomEvent	✅
DecompressionStream	✅
Event	✅
EventTarget	✅
exports	✅
fetch	✅
File	✅
FormData	✅
global	✅
Headers	✅
MessageChannel	✅
MessageEvent	✅
MessagePort	✅
module	✅
PerformanceEntry	✅
PerformanceMark	✅
PerformanceMeasure	✅
PerformanceObserver	✅
PerformanceObserverEntryList	❌
PerformanceResourceTiming	❌
performance	✅
process	✅
queueMicrotask	✅
ReadableByteStreamController	✅
ReadableStream	✅
ReadableStreamBYOBReader	✅
ReadableStreamBYOBRequest	✅
ReadableStreamDefaultController	✅
ReadableStreamDefaultReader	✅
require	✅
Response	✅
Request	✅
setImmediate	✅
setInterval	✅
setTimeout	✅
structuredClone	✅
structuredClone	✅
SubtleCrypto	✅
DOMException	✅
TextDecoder	✅
TextDecoderStream	✅
TextEncoder	✅
TextEncoderStream	✅
TransformStream	✅
TransformStreamDefaultController	✅
URL	✅
URLSearchParams	✅
URLSearchParams	✅
WebAssembly	✅
WritableStream	✅
WritableStreamDefaultController	✅
WritableStreamDefaultWriter	✅

Node test results

If you're interested in a more detailed view of compatibility on a per-test-case basis, you can find a list of both passing and failing Node.js test cases on this page.