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Version
1.2
Size
10.68 Mb
Updated
2 weeks ago
Released
16 Jun 2025
Description
Discover What the Browser Really SupportsDiscover What the Browser Really Supports
Web Feature Check helps developers, testers, and tech-savvy users instantly check which web technologies are supported in the current environment - whether it’s a mobile browser, embedded WebView, or custom in-app browser.
Whether you're debugging quirks in mobile Safari or ensuring your web app works in limited environments, this tool gives you instant clarity.
Key Features
Check Runtime Web Features
Detect supported JavaScript APIs, HTML5 elements, CSS features, media codecs, and more - all from the environment itself.
Test Browser & WebView Capabilities
Identify the exact feature set exposed by any browser, including embedded views and in-app browsers.
Designed for Mobile Testing
Quickly test on real devices - no desktop emulators, no guesswork.
Test Categories and Coverage
1. HTML5 & Media
Tests core media-related capabilities:
- canvas, video, audio, picture, srcset
- WebGL / WebGL2
- Picture-in-Picture
2. Audio & Media Processing
Covers modern media and audio APIs:
- Web Audio, MediaRecorder, ImageCapture
- Web Speech API, Media Capabilities, Web MIDI
3. UX & Notifications
Checks interaction and user feedback features:
- Notifications, Fullscreen, Page Visibility
- Web Share, Badging, Wake Lock, Vibration
4. JavaScript APIs
Includes advanced JS platform features:
- Service Workers, WebAssembly, Fetch, Streams
- Clipboard, Crypto, ES6 Modules, Encoding API
5. Performance & Monitoring
Observability & reactivity tools:
- Intersection / Resize / Mutation / Performance Observers
- Reporting API
6. Navigation & Communication
Tests communication between contexts:
- History & URL APIs
- Beacon, BroadcastChannel, Server-sent Events
- WebSockets, MessageChannel, XMLHttpRequest
7. Storage & Files
Detects client-side data persistence options:
- localStorage, sessionStorage, IndexedDB
- File System Access, Cache Storage, File API
- StorageManager & usage estimates
8. Input & Interaction
Covers input modalities and interactivity:
- Touch, Pointer, Drag-and-Drop
- Gamepad, Pointer Lock, Viewport API
- Selection API
9. Connectivity & Device Access
Tests direct hardware or network integration:
- WebRTC, Web Bluetooth, USB, Serial
- Geolocation, DeviceMotion, Orientation, Battery, Network Info
10. Animation & Graphics
Graphics rendering and animation pipelines:
- Web Animations, WebGPU, WebCodecs
11. CSS & Layout
Modern layout and visual CSS features:
- CSS Grid, Flexbox, Container Queries, Subgrid
- Backdrop-filter, View Transitions, Font Loading, Typed OM
12. Commerce & Payment
E-commerce and data collection:
- Payment Request API, Contact Picker
13. Security & Permissions
Access and auth-related technologies:
- Permissions, WebAuthn, Credential Mgmt, Trusted Types
14. Experimental APIs
Emerging technologies still in draft or behind flags:
- WebXR, Web NFC, Web Locks, WebTransport
- Background Sync, Push API, Idle Detection, Compression Streams
Scoring & Reporting
- The app gives you a feature support score (e.g. 82/120)
- Each category shows how many tests passed
- Color-coded badges help you quickly interpret support levels (fully supported vs. unsupported)
- Optionally, users can explore each feature’s MDN documentation directly from the interface
Estimates
Availability
Devices
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
iPhone12Mini
iPhone12
iPhone12Pro
iPhone12ProMax
iPadAir4
iPadAir4Cellular
iPadEighthGen
iPadEighthGenCellular
iPadProThirdGen
iPadProThirdGenCellular
iPadProFifthGen
iPadProFifthGenCellular
iPhone13Pro
iPhone13ProMax
iPhone13Mini
iPhone13
iPadMiniSixthGen
iPadMiniSixthGenCellular
iPadNinthGen
iPadNinthGenCellular
iPhoneSEThirdGen
iPadAirFifthGen
iPadAirFifthGenCellular
iPhone14
iPhone14Plus
iPhone14Pro
iPhone14ProMax
iPadTenthGen
iPadTenthGenCellular
iPadPro11FourthGen
iPadPro11FourthGenCellular
iPadProSixthGen
iPadProSixthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | free |
| China | free |
| France | free |
| Germany | free |
| Italy | free |
| Netherlands | free |
| Portugal | free |
| Spain | free |
| UK | free |
| India | free |
| Japan | free |
| Korea, Republic Of | free |
| Poland | free |
| Russia | free |
| Turkey | free |
| USA | free |
| Ukraine | free |
