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Codec: avc1.4d003c

84.8% Encoder Support
53,528 of 63,120 sessions supported encoding
85.35% Decoder Support
10,111 of 11,846 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,120 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.22% 27,652 / 27,868 99.91% 4,291 / 4,295 — 97.64% 11,938 / 12,226 97.18% 1,549 / 1,594
SafariSafari
 — 2.24% 36 / 1,604 1.42% 99 / 6,986 — —
EdgeEdge
 99.79% 5,138 / 5,149 100.0% 48 / 48 — 98.4% 123 / 125 100.0% 15 / 15
FirefoxFirefox
 95.6% 2,062 / 2,157 100.0% 265 / 265 — — 99.63% 272 / 273

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,846 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,174 / 5,176 99.7% 657 / 659 — 99.69% 2,254 / 2,261 98.66% 369 / 374
SafariSafari
 — 4.02% 10 / 249 1.88% 27 / 1,434 — —
EdgeEdge
 100.0% 1,071 / 1,071 — — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 396 / 396 100.0% 41 / 41 — — 100.0% 53 / 53