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Codec: avc1.42103d

85.28% Encoder Support
53,774 of 63,058 sessions supported encoding
85.32% Decoder Support
10,236 of 11,997 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,058 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.72% 27,731 / 27,809 99.81% 4,230 / 4,238 — 99.62% 12,050 / 12,096 98.69% 1,584 / 1,605
SafariSafari
 — 2.23% 37 / 1,661 1.59% 112 / 7,045 — —
EdgeEdge
 100.0% 5,117 / 5,117 100.0% 49 / 49 — 100.0% 94 / 94 100.0% 11 / 11
FirefoxFirefox
 96.25% 2,156 / 2,240 100.0% 293 / 293 — 0.0% 0 / 13 98.92% 275 / 278

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,997 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,203 / 5,204 99.36% 620 / 624 — 99.91% 2,278 / 2,280 99.27% 407 / 410
SafariSafari
 — 3.15% 9 / 286 1.49% 21 / 1,406 — —
EdgeEdge
 100.0% 1,076 / 1,076 — — 100.0% 40 / 40 —
FirefoxFirefox
 100.0% 448 / 448 100.0% 47 / 47 — — 100.0% 67 / 67