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Codec: avc1.42003c

87.25% Encoder Support
1,874,605 of 2,148,474 sessions supported encoding
87.46% Decoder Support
1,834,474 of 2,097,547 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,474 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.91% 866,676 / 867,464 99.66% 100,483 / 100,825 — 99.25% 644,546 / 649,416 97.22% 42,307 / 43,519
SafariSafari
 — 1.52% 733 / 48,125 1.87% 4,082 / 217,812 — —
EdgeEdge
 99.98% 144,362 / 144,395 99.87% 1,481 / 1,483 — 99.88% 4,238 / 4,243 98.22% 716 / 729
FirefoxFirefox
 95.94% 51,296 / 53,466 99.97% 7,269 / 7,271 — 0.0% 0 / 118 98.71% 6,057 / 6,136

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,547 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 844,777 / 845,165 99.65% 96,807 / 97,145 — 99.37% 635,415 / 639,445 97.32% 41,211 / 42,347
SafariSafari
 — 1.57% 733 / 46,734 1.88% 3,989 / 212,180 — —
EdgeEdge
 99.98% 140,389 / 140,422 99.93% 1,432 / 1,433 — 100.0% 4,162 / 4,162 98.48% 712 / 723
FirefoxFirefox
 99.94% 51,683 / 51,716 99.87% 7,034 / 7,043 — 0.0% 0 / 108 98.47% 5,797 / 5,887