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Codec: avc1.420032

99.56% Encoder Support
63,026 of 63,306 sessions supported encoding
99.93% Decoder Support
12,037 of 12,045 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,306 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.71% 27,759 / 27,840 99.95% 4,383 / 4,385 — 99.72% 12,281 / 12,315 98.6% 1,624 / 1,647
SafariSafari
 — 99.94% 1,659 / 1,660 100.0% 6,985 / 6,985 — —
EdgeEdge
 99.98% 5,050 / 5,051 100.0% 44 / 44 — 100.0% 105 / 105 —
FirefoxFirefox
 94.75% 2,111 / 2,228 100.0% 265 / 265 — 0.0% 0 / 13 98.99% 293 / 296

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,045 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,313 / 5,313 99.85% 684 / 685 — 100.0% 2,307 / 2,307 99.21% 379 / 382
SafariSafari
 — 100.0% 297 / 297 100.0% 1,398 / 1,398 — —
EdgeEdge
 100.0% 1,025 / 1,025 — — 100.0% 35 / 35 —
FirefoxFirefox
 100.0% 406 / 406 100.0% 49 / 49 — — 100.0% 63 / 63