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Codec: avc1.421034

99.62% Encoder Support
62,672 of 62,912 sessions supported encoding
99.92% Decoder Support
12,027 of 12,037 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 62,912 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.73% 27,599 / 27,674 99.95% 4,429 / 4,431 — 99.74% 12,206 / 12,238 98.96% 1,625 / 1,642
SafariSafari
 — 99.88% 1,669 / 1,671 100.0% 6,961 / 6,961 — —
EdgeEdge
 99.98% 4,885 / 4,886 100.0% 51 / 51 — 100.0% 93 / 93 —
FirefoxFirefox
 95.55% 2,104 / 2,202 100.0% 266 / 266 — — 99.35% 308 / 310

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,037 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.92% 5,264 / 5,268 99.85% 682 / 683 — 100.0% 2,326 / 2,326 99.48% 382 / 384
SafariSafari
 — 100.0% 273 / 273 100.0% 1,450 / 1,450 — —
EdgeEdge
 100.0% 1,014 / 1,014 — — 100.0% 20 / 20 —
FirefoxFirefox
 100.0% 410 / 410 100.0% 56 / 56 — — 100.0% 65 / 65