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Codec: avc1.42142a

85.52% Encoder Support
53,944 of 63,079 sessions supported encoding
99.94% Decoder Support
12,046 of 12,053 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,079 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.75% 27,714 / 27,783 99.95% 4,380 / 4,382 — 99.79% 12,229 / 12,255 98.9% 1,525 / 1,542
SafariSafari
 — 2.46% 41 / 1,664 1.63% 114 / 6,980 — —
EdgeEdge
 100.0% 5,067 / 5,067 97.96% 48 / 49 — 100.0% 115 / 115 —
FirefoxFirefox
 95.47% 2,086 / 2,185 100.0% 273 / 273 — — 99.34% 301 / 303

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,053 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,284 / 5,285 99.86% 725 / 726 — 100.0% 2,247 / 2,247 99.02% 405 / 409
SafariSafari
 — 100.0% 279 / 279 100.0% 1,420 / 1,420 — —
EdgeEdge
 100.0% 1,038 / 1,038 — — 100.0% 35 / 35 —
FirefoxFirefox
 100.0% 413 / 413 100.0% 42 / 42 — — 100.0% 61 / 61