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Codec: avc1.420429

85.24% Encoder Support
53,644 of 62,931 sessions supported encoding
99.96% Decoder Support
11,752 of 11,757 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,931 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.79% 27,559 / 27,618 99.98% 4,336 / 4,337 — 99.68% 12,180 / 12,219 99.09% 1,530 / 1,544
SafariSafari
 — 1.59% 26 / 1,633 1.56% 111 / 7,098 — —
EdgeEdge
 99.98% 5,000 / 5,001 100.0% 61 / 61 — 100.0% 110 / 110 —
FirefoxFirefox
 94.75% 2,113 / 2,230 100.0% 287 / 287 — 0.0% 0 / 14 98.94% 281 / 284

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,757 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,155 / 5,156 99.85% 655 / 656 — 100.0% 2,212 / 2,212 99.75% 395 / 396
SafariSafari
 — 100.0% 268 / 268 100.0% 1,444 / 1,444 — —
EdgeEdge
 100.0% 1,018 / 1,018 100.0% 13 / 13 — 100.0% 35 / 35 —
FirefoxFirefox
 100.0% 389 / 389 100.0% 43 / 43 — — 100.0% 55 / 55