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Codec: avc1.42101e

99.63% Encoder Support
2,140,285 of 2,148,164 sessions supported encoding
99.8% Decoder Support
2,092,856 of 2,096,963 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 10 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,164 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,495 / 867,075 99.83% 100,231 / 100,406 — 99.5% 646,380 / 649,622 97.95% 43,002 / 43,901
SafariSafari
 — 99.76% 47,972 / 48,087 99.97% 218,611 / 218,673 — —
EdgeEdge
 99.99% 143,108 / 143,119 100.0% 1,429 / 1,429 — 99.93% 4,221 / 4,224 98.93% 646 / 653
FirefoxFirefox
 95.93% 51,754 / 53,948 99.97% 7,530 / 7,532 — 0.85% 1 / 117 98.5% 5,848 / 5,937

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,963 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,381 / 844,547 99.82% 96,610 / 96,788 — 99.64% 637,336 / 639,613 98.24% 41,948 / 42,698
SafariSafari
 — 99.84% 46,697 / 46,772 99.97% 212,993 / 213,055 — —
EdgeEdge
 99.99% 139,024 / 139,035 100.0% 1,390 / 1,390 — 100.0% 4,144 / 4,144 99.23% 643 / 648
FirefoxFirefox
 99.98% 52,160 / 52,172 99.97% 7,266 / 7,268 — 0.93% 1 / 108 98.51% 5,633 / 5,718