← Back to Codec Support Table

Codec: avc1.42083c

87.18% Encoder Support
278,645 of 319,603 sessions supported encoding
87.77% Decoder Support
235,672 of 268,510 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,603 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.81% 143,248 / 143,516 99.78% 19,707 / 19,751 — 99.65% 63,209 / 63,433 98.19% 7,598 / 7,738
SafariSafari
 — 2.2% 187 / 8,483 1.48% 463 / 31,291 — —
EdgeEdge
 99.97% 30,849 / 30,859 100.0% 373 / 373 — 99.7% 986 / 989 100.0% 60 / 60
FirefoxFirefox
 96.08% 9,270 / 9,648 100.0% 1,308 / 1,308 — 0.0% 0 / 27 98.55% 1,295 / 1,314

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,510 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,009 / 121,063 99.77% 16,090 / 16,127 — 99.84% 53,394 / 53,480 98.38% 6,376 / 6,481
SafariSafari
 — 2.18% 155 / 7,114 1.45% 370 / 25,600 — —
EdgeEdge
 99.96% 26,908 / 26,918 100.0% 327 / 327 — 100.0% 915 / 915 100.0% 54 / 54
FirefoxFirefox
 99.92% 7,854 / 7,860 100.0% 1,092 / 1,092 — 0.0% 0 / 20 99.07% 1,062 / 1,072