~/labs/browser

browser.

what your current browser can do, feature by feature — scoped to practical APIs you'd actually ship. live-detected on this exact tab, no caniuse lookup needed.

25 of 94 supported

unknown

javascript15 / 15

✓Promise
✓async/await
✓BigInt
✓WeakRef
✓FinalizationRegistry
✓Intl.Segmenter
✓Intl.DisplayNames
✓Intl.ListFormat
✓Array.at
✓Array.findLast
✓Array.fromAsync
✓Object.hasOwn
✓structuredClone
✓AbortController
✓top-level await

networking4 / 7

✓fetch
✓Streams API
✓WebSocket
·WebTransport
✓Server-Sent Events
·Background Sync
·HTTP/3 (QUIC)

storage0 / 7

·localStorage
·sessionStorage
·IndexedDB
·Cache API
·OPFS (origin private fs)
·File System Access
·Storage estimate

graphics0 / 7

·Canvas 2D
·WebGL
·WebGL 2
·WebGPU
·OffscreenCanvas
·Path2D
·createImageBitmap

media0 / 10

·WebAudio
·MediaRecorder
·WebRTC
·getUserMedia
·getDisplayMedia
·Picture-in-Picture
·Web Speech (recognition)
·Web Speech (synthesis)
·WebMIDI
·WebCodecs

security / identity2 / 6

✓SubtleCrypto
✓crypto.randomUUID
·WebAuthn
·Credential Management
·Trusted Types
·Secure Context

device / sensors0 / 14

·Geolocation
·DeviceMotion
·DeviceOrientation
·Gamepad
·Battery
·Vibration
·Clipboard (read+write)
·WebUSB
·WebSerial
·WebHID
·WebBluetooth
·WebNFC
·Screen Orientation
·Screen Wake Lock

ui platform0 / 14

·PointerEvents
·Intersection Observer
·Resize Observer
·Mutation Observer
·Page Visibility
·View Transitions
·Popover API
·Dialog element
·CustomElements
·ShadowDOM
·Web Share
·File drag & drop
·Pointer Lock
·Fullscreen

performance2 / 8

·Performance Observer
·Long Animation Frames (LoAF)
✓User Timing L3
·Navigator.deviceMemory
✓Navigator.hardwareConcurrency
·Connection (NetInfo)
·isInputPending
·requestIdleCallback

workers2 / 6

·Web Workers
·Shared Workers
·Service Worker
·Worklet
✓SharedArrayBuffer
✓Atomics