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Codec: avc1.42043c

85.52% Encoder Support
53,900 of 63,026 sessions supported encoding
85.47% Decoder Support
10,208 of 11,944 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 63,026 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.7% 27,729 / 27,812 99.91% 4,311 / 4,315 — 99.59% 12,277 / 12,328 97.92% 1,555 / 1,588
SafariSafari
 — 2.33% 39 / 1,676 1.76% 121 / 6,869 — —
EdgeEdge
 100.0% 4,971 / 4,971 97.96% 48 / 49 — 100.0% 99 / 99 —
FirefoxFirefox
 95.23% 2,098 / 2,203 100.0% 302 / 302 — 0.0% 0 / 15 99.34% 302 / 304

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,944 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,213 / 5,213 99.69% 652 / 654 — 99.78% 2,257 / 2,262 98.99% 392 / 396
SafariSafari
 — 3.26% 9 / 276 2.12% 30 / 1,414 — —
EdgeEdge
 100.0% 1,048 / 1,048 100.0% 13 / 13 — 100.0% 24 / 24 —
FirefoxFirefox
 100.0% 440 / 440 100.0% 58 / 58 — — 100.0% 62 / 62