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Codec: avc1.420034

99.63% Encoder Support
62,914 of 63,146 sessions supported encoding
99.93% Decoder Support
11,935 of 11,943 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 63,146 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.74% 27,839 / 27,911 99.93% 4,296 / 4,299 — 99.73% 12,125 / 12,158 99.18% 1,581 / 1,594
SafariSafari
 — 99.94% 1,630 / 1,631 100.0% 7,055 / 7,055 — —
EdgeEdge
 100.0% 5,079 / 5,079 100.0% 43 / 43 — 100.0% 102 / 102 —
FirefoxFirefox
 95.54% 2,077 / 2,174 100.0% 289 / 289 — — 99.65% 281 / 282

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,943 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,272 / 5,273 99.85% 661 / 662 — 100.0% 2,231 / 2,231 99.07% 426 / 430
SafariSafari
 — 100.0% 282 / 282 100.0% 1,442 / 1,442 — —
EdgeEdge
 100.0% 1,005 / 1,005 100.0% 10 / 10 — 100.0% 20 / 20 —
FirefoxFirefox
 100.0% 408 / 408 100.0% 51 / 51 — — 100.0% 53 / 53