# mykit.run — Browser Capability Testing Toolkit

> Test 50+ Web APIs, permissions, and enterprise policy enforcement across all major browsers. Free, open, and privacy-respecting.

## About

mykit.run is a comprehensive browser testing toolkit for developers, QA engineers, and IT administrators. It provides interactive tests for Web APIs, browser permissions, hardware device access, and enterprise policy enforcement (Chrome, Edge, Firefox). No data is collected — all tests run entirely in the browser.

## Key Features

- **50+ Web API Tests**: Interactive capability tests that run in-browser
- **Enterprise Policy Testing**: Verify Chrome/Edge/Firefox policy enforcement
- **Browser Fingerprinting**: Canvas, WebGL, and Audio fingerprint analysis
- **Developer Tools**: JWT decoder, JSON formatter, hash generator, regex tester, and more
- **Network Tools**: CORS tester, WebSocket client, HTTP header inspector
- **Safe Browsing Tests**: Google Safe Browsing and Microsoft SmartScreen verification links
- **PWA Support**: Installable as a Progressive Web App
- **Privacy-First**: No analytics, no tracking, no data collection

## Site Structure

### Homepage
- URL: https://mykit.run
- Description: Overview of all test categories, browser analysis tools, developer tools, and network utilities

### Capability Categories
- https://mykit.run/content — Content Settings (JavaScript, cookies, images, popups, mixed content, drag-and-drop, autoplay, printing)
- https://mykit.run/permissions — Permissions (clipboard, geolocation, idle detection, fullscreen, downloads, web share, pointer lock, MIDI, payment, NFC, window management, keyboard lock, local fonts, speech, notifications)
- https://mykit.run/hardware — Hardware & Devices (camera, microphone, screen capture, WebUSB, WebHID, serial, bluetooth, sensors, gamepad, vibration, screen wake lock)
- https://mykit.run/network — Network (local network, server-sent events, WebTransport, broadcast channel, beacon, WebRTC, direct sockets)
- https://mykit.run/storage — Storage & Files (upload, filesystem access, IndexedDB, Cache API, storage manager, Web SQL, download restrictions)
- https://mykit.run/media — Media & Graphics (WebGL, WebGPU, Web Audio, picture-in-picture, media session, web codecs, eye dropper, PDF viewer)
- https://mykit.run/security — Security & Privacy (mixed content, permissions policy, cross-origin isolation, storage access, WebAuthn, third-party cookies, privacy sandbox, WebRTC leak, referrer test, CSP test)
- https://mykit.run/pwa — PWA (notifications, service worker, web app manifest, background sync, periodic background sync, badging)

### Individual Capability Tests
Each capability test page is at: https://mykit.run/{category}/{slug}
For example:
- https://mykit.run/hardware/camera — Camera access test
- https://mykit.run/permissions/geolocation — Geolocation API test
- https://mykit.run/media/webgl — WebGL rendering test
- https://mykit.run/security/webauthn — WebAuthn/passkey test

### Browser Analysis
- https://mykit.run/browser-info — Detailed browser, screen, hardware, and network information
- https://mykit.run/fingerprint — Canvas, WebGL, and Audio fingerprint generation and analysis

### Developer Tools
- https://mykit.run/tools/encoder — Base64, URL, HTML entity encoding/decoding
- https://mykit.run/tools/jwt — JWT token decoder and inspector
- https://mykit.run/tools/json — JSON formatter, minifier, and validator
- https://mykit.run/tools/hash — SHA-1, SHA-256, SHA-384, SHA-512 hash generator
- https://mykit.run/tools/uuid — UUID v4 generator and validator
- https://mykit.run/tools/timestamp — Unix timestamp ↔ date converter
- https://mykit.run/tools/regex — Regular expression tester and debugger
- https://mykit.run/tools/color — HEX, RGB, HSL, OKLCH color converter
- https://mykit.run/tools/url — URL parser and builder
- https://mykit.run/tools/markdown — Live markdown-to-HTML preview
- https://mykit.run/tools/diff — Text diff viewer and comparison
- https://mykit.run/tools/qrcode — QR code generator from text or URLs
- https://mykit.run/tools/css-units — CSS unit converter (px, rem, em, vw, vh, %)

### Network Tools
- https://mykit.run/tools/cors — CORS (Cross-Origin Resource Sharing) tester
- https://mykit.run/tools/websocket — WebSocket connection tester
- https://mykit.run/tools/headers — HTTP response header viewer

## Use Cases

1. **Web Developers**: Verify browser API support and test feature detection before shipping
2. **QA Engineers**: Validate browser capabilities across different browsers and versions
3. **IT Administrators**: Test enterprise policy enforcement (Chrome Enterprise, Edge, Firefox)
4. **Security Researchers**: Analyze browser fingerprinting vectors and privacy features
5. **DevOps/SRE**: Test network capabilities, CORS configuration, and WebSocket connectivity

## Technical Details

- Built with Next.js (static export)
- Hosted on Cloudflare Pages
- All tests run client-side — no server-side processing
- No cookies, no analytics, no third-party scripts
- Source: https://mykit.run