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Codec: avc1.4d040a

4.42% Encoder Support
2,780 of 62,916 sessions supported encoding
99.94% Decoder Support
11,961 of 11,968 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,916 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 / 27,799 0.12% 5 / 4,340 — 0.02% 3 / 12,168 0.19% 3 / 1,596
SafariSafari
 — 2.28% 37 / 1,623 1.51% 106 / 7,006 — —
EdgeEdge
 0.0% 0 / 5,003 0.0% 0 / 48 — 0.0% 0 / 110 —
FirefoxFirefox
 95.11% 2,079 / 2,186 99.61% 254 / 255 — — 98.93% 278 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,968 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,280 / 5,280 100.0% 695 / 695 — 100.0% 2,247 / 2,247 98.75% 394 / 399
SafariSafari
 — 100.0% 276 / 276 100.0% 1,437 / 1,437 — —
EdgeEdge
 100.0% 1,001 / 1,001 — — 100.0% 38 / 38 —
FirefoxFirefox
 100.0% 410 / 410 100.0% 49 / 49 — — 100.0% 46 / 46