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Codec: avc1.42103c

85.48% Encoder Support
53,856 of 63,004 sessions supported encoding
85.66% Decoder Support
10,268 of 11,987 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 63,004 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.73% 27,665 / 27,741 99.79% 4,374 / 4,383 99.65% 12,080 / 12,122 97.71% 1,578 / 1,615
SafariSafari
2.64% 43 / 1,628 1.89% 132 / 6,986
EdgeEdge
100.0% 5,052 / 5,052 98.11% 52 / 53 100.0% 100 / 100
FirefoxFirefox
95.58% 2,164 / 2,264 100.0% 285 / 285 0.0% 0 / 12 98.66% 294 / 298

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,987 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.96% 5,348 / 5,350 99.55% 665 / 668 99.78% 2,229 / 2,234 99.2% 371 / 374
SafariSafari
3.55% 10 / 282 2.22% 31 / 1,395
EdgeEdge
100.0% 1,018 / 1,018 100.0% 30 / 30
FirefoxFirefox
100.0% 449 / 449 100.0% 49 / 49 100.0% 54 / 54