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Codec: avc1.421415

3.97% Encoder Support
12,709 of 319,744 sessions supported encoding
99.94% Decoder Support
268,449 of 268,621 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,744 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 32 / 143,891 0.15% 30 / 19,734 — 0.14% 88 / 63,562 0.79% 60 / 7,642
SafariSafari
 — 2.23% 190 / 8,508 1.35% 420 / 31,107 — —
EdgeEdge
 0.03% 8 / 30,797 0.0% 0 / 375 — 0.0% 0 / 1,008 0.0% 0 / 50
FirefoxFirefox
 95.93% 9,178 / 9,567 100.0% 1,362 / 1,362 — 0.0% 0 / 35 97.97% 1,303 / 1,330

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,621 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,271 / 121,306 99.93% 15,983 / 15,994 — 99.99% 53,667 / 53,674 98.96% 6,382 / 6,449
SafariSafari
 — 99.94% 7,178 / 7,182 99.98% 25,506 / 25,511 — —
EdgeEdge
 100.0% 26,807 / 26,807 100.0% 335 / 335 — 100.0% 926 / 926 100.0% 45 / 45
FirefoxFirefox
 99.99% 7,778 / 7,779 100.0% 1,118 / 1,118 — 0.0% 0 / 22 99.63% 1,082 / 1,086