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Codec: avc1.420034

99.7% Encoder Support
319,510 of 320,483 sessions supported encoding
99.93% Decoder Support
269,060 of 269,257 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,483 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 144,069 / 144,314 99.86% 19,673 / 19,700 — 99.76% 63,262 / 63,414 98.85% 7,627 / 7,716
SafariSafari
 — 99.91% 8,596 / 8,604 99.99% 31,232 / 31,234 — —
EdgeEdge
 100.0% 30,910 / 30,911 100.0% 365 / 365 — 99.58% 959 / 963 100.0% 59 / 59
FirefoxFirefox
 96.08% 9,310 / 9,690 100.0% 1,333 / 1,333 — 0.0% 0 / 33 98.99% 1,279 / 1,292

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,257 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,635 / 121,675 99.84% 16,038 / 16,063 — 99.98% 53,477 / 53,487 98.99% 6,486 / 6,552
SafariSafari
 — 99.9% 7,246 / 7,253 99.99% 25,599 / 25,601 — —
EdgeEdge
 100.0% 26,836 / 26,837 100.0% 332 / 332 — 100.0% 881 / 881 100.0% 54 / 54
FirefoxFirefox
 99.99% 7,923 / 7,924 100.0% 1,095 / 1,095 — 0.0% 0 / 28 99.44% 1,057 / 1,063