Explore browser permissions
List every Permissions API entry your browser supports and request prompts for camera, geolocation, notifications, MIDI, sensors, and clipboard — entirely in your browser.
geolocation — notifications — camera — microphone — midi — accelerometer — gyroscope — magnetometer — clipboard-read — clipboard-write —
How to query and request permissions
The Permissions API queries the current state without prompting. Trigger a request through the relevant Web API to fire the browser prompt.
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Inspect state
Each row shows granted, denied, or prompt as reported by navigator.permissions.query().
Inputs are treated as UTF-8 throughout the pipeline and validated client-side as you type — nothing dispatches until the value is well-formed.
queryinpututf-8client-sidevalidatedname · textstate · setcamera prompt
loaded · parsedclient-side - 02
Request a permission
Click Request to fire the appropriate getUserMedia, Notification.requestPermission, or getCurrentPosition call.
Each toggle re-computes through a memoised hook, so flipping options never resets your input and the UI stays snappy on large inputs.
requestoptionslivememoisedtogglesclick · memoisedRequest · liveprompt → granted
options set · memoisedlive - 03
Watch live changes
Each query subscribes to onchange events — flipping a site permission in browser settings reflects instantly.
Randomness — where used — comes from
crypto.getRandomValues, neverMath.random. Heavy work sits inuseMemo.eventscomputeinstantlocaldeterministiconchange · instantlive · computedevent: change
computed · instantinstant - 04
Copy summary
Grab the full state list as tab-separated text.
Copy writes through
navigator.clipboardand downloads use aBlob— zero network traffic. Same input plus same options always yield the same bytes.copydownloadzero-networkreproducibleok · copiedtxt · copiedCopied
shipped · ready to shipsuccess
Pro tips for everyday utilities
Reach for crypto.getRandomValues
Cryptographically random for IDs, tokens, salts. Math.random is for animation and games, not security.
Mock data with seeds
Faker-style libraries can be seeded so tests are reproducible. Embed the seed in the fixture file.
Reference cards beat memory
Cheatsheets for Vim, Git, Docker, Linux signals are faster than man pages when you’re mid-flow.
Browser APIs vary
Touch events, gamepads, and clipboard differ across vendors. Feature-detect before use.
Persist in the right place
localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data.
When to use the explorer
Debug permission prompts, verify privacy settings, QA progressive enhancements.
Permission debugging
See which APIs your browser exposes and their current site state. Random values come from crypto.getRandomValues — cryptographically secure for tokens, salts, and session IDs. Math.random is deterministic enough for animations but predictable enough to be a security bug.
CSPRNG-backedQA install flows
Replay first-time prompt flows for camera and notifications. Pair with hashids, ULID, or UUID v7 when you need both random and sortable — useful for primary keys, public-facing IDs, and event log ordering without a sequence column.
reproducibleProgressive enhancement
Test what happens when a feature is denied without leaving the tool. Output is deterministic given the same seed, so fixtures and tests stay reproducible across CI runs and contributor machines. Embed the seed in the fixture file for full replay.
snappySensor coverage
Verify accelerometer, gyroscope, and magnetometer support per device. Heavy work runs through useMemo so the UI stays snappy on large inputs. Same input + same options yields identical bytes — the kind of stability snapshot tests rely on.
feature-detectedLive state checks
Watch onchange events fire when permissions flip in browser settings. Storage tools persist to the right backend: localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data. Pick the right shelf and quota worries disappear.
deterministicCross-browser audit
Compare which entries each browser exposes via the Permissions API. Browser feature detection: clipboard, fullscreen, gamepad, and Web Bluetooth APIs gracefully fall back when unavailable. No surprise white screens on Safari or older Firefox.
production-readyFrequently asked questions
Something missing?
Tell us what you need. We ship the top requests every two weeks.