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Codec: avc1.4d0c1f

84.63% Encoder Support
52,950 of 62,565 sessions supported encoding
99.92% Decoder Support
11,975 of 11,985 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 3.1
Maximum Resolution HD ready (1024×960)
Maximum Bitrate 14 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,565 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.16% 27,182 / 27,412 99.93% 4,363 / 4,366 — 97.57% 11,775 / 12,068 98.3% 1,565 / 1,592
SafariSafari
 — 2.55% 41 / 1,605 1.69% 119 / 7,051 — —
EdgeEdge
 99.88% 5,073 / 5,079 100.0% 51 / 51 — 100.0% 90 / 90 —
FirefoxFirefox
 95.35% 2,072 / 2,173 100.0% 273 / 273 — 0.0% 0 / 16 99.01% 299 / 302

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,985 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,228 / 5,229 99.86% 696 / 697 — 100.0% 2,234 / 2,234 99.05% 415 / 419
SafariSafari
 — 100.0% 282 / 282 100.0% 1,438 / 1,438 — —
EdgeEdge
 100.0% 1,035 / 1,035 — — 100.0% 24 / 24 —
FirefoxFirefox
 100.0% 417 / 417 100.0% 60 / 60 — — 100.0% 61 / 61