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Codec: avc1.4d1029

98.88% Encoder Support
62,377 of 63,083 sessions supported encoding
99.93% Decoder Support
11,862 of 11,870 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,083 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.12% 27,637 / 27,881 99.91% 4,331 / 4,335 — 97.62% 11,832 / 12,120 98.38% 1,574 / 1,600
SafariSafari
 — 100.0% 1,681 / 1,681 100.0% 6,924 / 6,924 — —
EdgeEdge
 99.86% 5,124 / 5,131 100.0% 55 / 55 — 99.05% 104 / 105 100.0% 10 / 10
FirefoxFirefox
 94.98% 2,098 / 2,209 100.0% 267 / 267 — 0.0% 0 / 16 99.28% 276 / 278

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,870 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,102 / 5,102 99.72% 702 / 704 — 100.0% 2,268 / 2,268 99.23% 385 / 388
SafariSafari
 — 100.0% 281 / 281 100.0% 1,406 / 1,406 — —
EdgeEdge
 100.0% 1,090 / 1,090 — — 100.0% 31 / 31 —
FirefoxFirefox
 100.0% 391 / 391 100.0% 56 / 56 — — 100.0% 56 / 56