← Back to Codec Support Table

Codec: avc1.420815

3.38% Encoder Support
72,600 of 2,148,547 sessions supported encoding
99.8% Decoder Support
2,093,192 of 2,097,362 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,547 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 271 / 867,194 0.16% 161 / 100,471 — 0.31% 2,007 / 649,593 0.88% 386 / 43,827
SafariSafari
 — 1.46% 705 / 48,343 1.84% 4,010 / 218,316 — —
EdgeEdge
 0.02% 34 / 143,673 0.0% 0 / 1,469 — 0.0% 0 / 4,222 0.15% 1 / 678
FirefoxFirefox
 95.83% 51,545 / 53,789 99.93% 7,447 / 7,452 — 0.0% 0 / 111 98.11% 5,861 / 5,974

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,362 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,498 / 844,705 99.82% 96,593 / 96,769 — 99.64% 637,376 / 639,665 98.29% 41,876 / 42,606
SafariSafari
 — 99.81% 46,816 / 46,904 99.98% 212,611 / 212,652 — —
EdgeEdge
 99.99% 139,705 / 139,712 100.0% 1,415 / 1,415 — 100.0% 4,137 / 4,137 99.26% 673 / 678
FirefoxFirefox
 99.96% 51,984 / 52,004 99.96% 7,219 / 7,222 — 1.9% 2 / 105 98.42% 5,660 / 5,751