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Codec: avc1.421415

4.55% Encoder Support
2,874 of 63,108 sessions supported encoding
99.94% Decoder Support
11,997 of 12,004 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 63,108 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 8 / 27,854 0.11% 5 / 4,442 — 0.16% 20 / 12,152 0.5% 8 / 1,586
SafariSafari
 — 2.73% 43 / 1,576 1.46% 102 / 7,008 — —
EdgeEdge
 0.0% 0 / 5,066 0.0% 0 / 46 — 0.0% 0 / 115 0.0% 0 / 10
FirefoxFirefox
 95.36% 2,076 / 2,177 100.0% 294 / 294 — 0.0% 0 / 13 98.69% 301 / 305

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,004 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,269 / 5,271 99.72% 700 / 702 — 100.0% 2,264 / 2,264 99.24% 390 / 393
SafariSafari
 — 100.0% 255 / 255 100.0% 1,424 / 1,424 — —
EdgeEdge
 100.0% 1,076 / 1,076 — — 100.0% 33 / 33 —
FirefoxFirefox
 100.0% 389 / 389 100.0% 50 / 50 — — 100.0% 61 / 61