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Codec: avc1.4d040c

3.26% Encoder Support
70,004 of 2,149,864 sessions supported encoding
99.8% Decoder Support
2,094,676 of 2,098,790 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,864 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 65 / 868,854 0.12% 117 / 100,369 — 0.03% 191 / 650,161 0.35% 154 / 43,855
SafariSafari
 — 1.56% 758 / 48,464 1.83% 3,992 / 218,238 — —
EdgeEdge
 0.0% 6 / 142,986 0.0% 0 / 1,484 — 0.0% 0 / 4,291 0.29% 2 / 698
FirefoxFirefox
 95.98% 51,272 / 53,417 99.91% 7,463 / 7,470 — 0.0% 0 / 108 97.92% 5,939 / 6,065

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,790 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 846,292 / 846,502 99.81% 96,547 / 96,731 — 99.65% 637,836 / 640,072 98.35% 41,969 / 42,675
SafariSafari
 — 99.82% 47,003 / 47,086 99.98% 212,521 / 212,573 — —
EdgeEdge
 99.99% 138,981 / 138,988 100.0% 1,439 / 1,439 — 100.0% 4,214 / 4,214 99.42% 689 / 693
FirefoxFirefox
 99.96% 51,618 / 51,638 99.97% 7,225 / 7,227 — 0.99% 1 / 101 98.32% 5,731 / 5,829