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Codec: avc1.4d0c3d

86.5% Encoder Support
277,493 of 320,814 sessions supported encoding
87.74% Decoder Support
236,653 of 269,707 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,814 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 142,741 / 143,748 99.74% 19,707 / 19,758 — 97.61% 62,171 / 63,694 97.79% 7,639 / 7,812
SafariSafari
 — 2.04% 173 / 8,474 1.52% 479 / 31,518 — —
EdgeEdge
 99.81% 30,944 / 31,003 100.0% 362 / 362 — 98.97% 957 / 967 100.0% 70 / 70
FirefoxFirefox
 95.99% 9,480 / 9,876 100.0% 1,327 / 1,327 — 0.0% 0 / 29 98.9% 1,348 / 1,363

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,707 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,144 / 121,207 99.71% 16,025 / 16,071 — 99.85% 53,784 / 53,866 98.62% 6,580 / 6,672
SafariSafari
 — 2.07% 148 / 7,155 1.48% 381 / 25,758 — —
EdgeEdge
 99.96% 26,950 / 26,962 100.0% 316 / 316 — 100.0% 902 / 902 100.0% 64 / 64
FirefoxFirefox
 99.94% 8,100 / 8,105 100.0% 1,086 / 1,086 — 0.0% 0 / 20 99.02% 1,109 / 1,120