Web Cryptography
- RECJavaScript API for performing basic cryptographic operations in web applications
Chrome
- ❌ 4 - 36: Not supported (but has polyfill available)
- ✅ 37 - 136: Supported
- ✅ 137: Supported
- ✅ 138 - 140: Supported
Edge
- ✅ 12 - 18: Supported
- ✅ 79 - 136: Supported
- ✅ 137: Supported
Safari
- ❌ 3.1 - 7: Not supported (but has polyfill available)
- ✅ 7.1 - 10.1: Supported
- ✅ 11 - 18.4: Supported
- ✅ 18.5: Supported
- ✅ 26.0 - TP: Supported
Firefox
- ❌ 2 - 31: Not supported (but has polyfill available)
- ❌ 32 - 33: Disabled by default
- ✅ 34 - 138: Supported
- ✅ 139: Supported
- ✅ 140 - 142: Supported
Opera
- ❌ 9 - 23: Not supported (but has polyfill available)
- ✅ 24 - 116: Supported
- ✅ 117: Supported
IE
- ❌ 5.5: Not supported
- ❌ 6 - 10: Not supported (but has polyfill available)
- ◐ 11: Partial support
Chrome for Android
- ✅ 137: Supported
Safari on iOS
- ❌ 3.2 - 7.1: Not supported (but has polyfill available)
- ✅ 8 - 10.3: Supported
- ✅ 11 - 18.4: Supported
- ✅ 18.5: Supported
- ✅ 26.0: Supported
Samsung Internet
- ✅ 4 - 27: Supported
- ✅ 28: Supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported (but has polyfill available)
- ✅ 80: Supported
UC Browser for Android
- ✅ 15.5: Supported
Android Browser
- ❌ 2.1 - 4.4.4: Not supported (but has polyfill available)
- ✅ 137: Supported
Firefox for Android
- ✅ 139: Supported
QQ Browser
- ✅ 14.9: Supported
Baidu Browser
- ✅ 13.52: Supported
KaiOS Browser
- ✅ 2.5: Supported
- ✅ 3: Supported
Many browsers support the [crypto.getRandomValues()](#feat=getrandomvalues) method, but not actual cryptography functionality under crypto.subtle.
- Resources:
- Cross-browser cryptography library
- MDN Web Docs - Web Crypto API
- Test suite for various algorithms/methods
- PKI.js - another crypto library for Public Key Infrastructure applications
- Microsoft Research JavaScript Cryptography Library
- Polyfill by Netflix with partial support
- Web Cryptography API shim for IE11 and Safari - set of bugfixes and workarounds of prefixed api implementations
- The History and Status of Web Crypto API