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Codec: avc1.420834

87.33% Encoder Support
1,875,742 of 2,147,832 sessions supported encoding
99.8% Decoder Support
2,092,737 of 2,096,829 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 2,147,832 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,035 / 867,653 99.81% 99,921 / 100,114 — 99.5% 646,217 / 649,470 98.06% 43,011 / 43,864
SafariSafari
 — 1.53% 741 / 48,329 1.79% 3,910 / 218,156 — —
EdgeEdge
 100.0% 143,064 / 143,071 99.93% 1,482 / 1,483 — 99.81% 4,210 / 4,218 98.93% 648 / 655
FirefoxFirefox
 96.09% 51,549 / 53,646 99.95% 7,544 / 7,548 — 2.0% 2 / 100 98.88% 5,933 / 6,000

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,829 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,932 / 845,131 99.81% 96,288 / 96,476 — 99.65% 637,280 / 639,522 98.32% 41,899 / 42,617
SafariSafari
 — 99.84% 46,903 / 46,976 99.98% 212,542 / 212,579 — —
EdgeEdge
 99.99% 139,075 / 139,082 100.0% 1,441 / 1,441 — 100.0% 4,142 / 4,142 99.23% 646 / 651
FirefoxFirefox
 99.97% 51,876 / 51,892 99.92% 7,309 / 7,315 — 2.11% 2 / 95 98.31% 5,689 / 5,787