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Codec: avc1.420c0d

4.55% Encoder Support
2,841 of 62,461 sessions supported encoding
99.88% Decoder Support
11,733 of 11,747 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,461 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.04% 11 / 27,503 0.16% 7 / 4,280 — 0.22% 26 / 12,080 0.69% 11 / 1,597
SafariSafari
 — 1.95% 33 / 1,690 1.73% 120 / 6,954 — —
EdgeEdge
 0.0% 0 / 4,999 0.0% 0 / 51 — 0.0% 0 / 106 —
FirefoxFirefox
 95.69% 2,066 / 2,159 100.0% 272 / 272 — 0.0% 0 / 13 99.3% 283 / 285

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,747 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.92% 5,151 / 5,155 99.7% 658 / 660 — 100.0% 2,204 / 2,204 98.78% 405 / 410
SafariSafari
 — 100.0% 264 / 264 100.0% 1,430 / 1,430 — —
EdgeEdge
 100.0% 1,020 / 1,020 — — 100.0% 34 / 34 —
FirefoxFirefox
 100.0% 379 / 379 100.0% 46 / 46 — — 100.0% 52 / 52