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Codec: avc1.4d0c15

4.53% Encoder Support
2,834 of 62,627 sessions supported encoding
99.92% Decoder Support
11,767 of 11,776 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,627 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 5 / 27,524 0.09% 4 / 4,362 — 0.02% 2 / 12,220 0.26% 4 / 1,519
SafariSafari
 — 1.7% 28 / 1,650 1.68% 117 / 6,955 — —
EdgeEdge
 0.0% 0 / 4,945 0.0% 0 / 46 — 0.0% 0 / 109 0.0% 0 / 12
FirefoxFirefox
 94.55% 2,101 / 2,222 100.0% 276 / 276 — 0.0% 0 / 13 99.65% 286 / 287

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,776 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,229 / 5,231 99.85% 669 / 670 — 100.0% 2,227 / 2,227 98.94% 373 / 377
SafariSafari
 — 100.0% 264 / 264 100.0% 1,392 / 1,392 — —
EdgeEdge
 100.0% 1,016 / 1,016 — — 100.0% 34 / 34 —
FirefoxFirefox
 100.0% 385 / 385 100.0% 43 / 43 — — 100.0% 59 / 59