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Codec: avc1.42040d

4.58% Encoder Support
2,881 of 62,853 sessions supported encoding
99.95% Decoder Support
11,889 of 11,895 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 62,853 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 9 / 27,774 0.18% 8 / 4,467 — 0.17% 20 / 12,062 0.64% 10 / 1,570
SafariSafari
 — 2.77% 45 / 1,623 1.75% 121 / 6,923 — —
EdgeEdge
 0.0% 0 / 4,988 0.0% 0 / 53 — 0.0% 0 / 107 —
FirefoxFirefox
 95.46% 2,101 / 2,201 99.62% 260 / 261 — — 97.7% 297 / 304

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,895 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 / 5,231 100.0% 655 / 655 — 100.0% 2,255 / 2,255 99.22% 380 / 383
SafariSafari
 — 100.0% 280 / 280 100.0% 1,439 / 1,439 — —
EdgeEdge
 100.0% 980 / 980 100.0% 12 / 12 — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 427 / 427 100.0% 48 / 48 — — 100.0% 63 / 63