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Codec: avc1.42101e

99.62% Encoder Support
62,950 of 63,192 sessions supported encoding
99.93% Decoder Support
12,004 of 12,013 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 10 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,192 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.78% 27,702 / 27,762 100.0% 4,297 / 4,297 — 99.76% 12,292 / 12,322 98.24% 1,564 / 1,592
SafariSafari
 — 100.0% 1,577 / 1,577 100.0% 7,053 / 7,053 — —
EdgeEdge
 100.0% 5,119 / 5,119 100.0% 46 / 46 — 100.0% 110 / 110 —
FirefoxFirefox
 95.22% 2,093 / 2,198 100.0% 314 / 314 — 0.0% 0 / 11 98.93% 278 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,013 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,234 / 5,235 100.0% 679 / 679 — 100.0% 2,313 / 2,313 98.71% 384 / 389
SafariSafari
 — 100.0% 266 / 266 100.0% 1,452 / 1,452 — —
EdgeEdge
 100.0% 1,035 / 1,035 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 422 / 422 100.0% 50 / 50 — — 100.0% 62 / 62