← Back to Codec Support Table

Codec: avc1.420415

4.58% Encoder Support
2,890 of 63,074 sessions supported encoding
99.93% Decoder Support
11,886 of 11,894 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 63,074 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 9 / 27,772 0.07% 3 / 4,295 — 0.16% 20 / 12,258 0.76% 12 / 1,577
SafariSafari
 — 2.33% 38 / 1,632 1.43% 100 / 7,010 — —
EdgeEdge
 0.0% 0 / 5,035 0.0% 0 / 46 — 0.0% 0 / 105 —
FirefoxFirefox
 95.56% 2,133 / 2,232 100.0% 277 / 277 — 0.0% 0 / 10 99.64% 280 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,894 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,192 / 5,194 100.0% 675 / 675 — 100.0% 2,257 / 2,257 99.22% 382 / 385
SafariSafari
 — 100.0% 267 / 267 100.0% 1,430 / 1,430 — —
EdgeEdge
 100.0% 1,047 / 1,047 — — 100.0% 29 / 29 —
FirefoxFirefox
 100.0% 404 / 404 100.0% 50 / 50 — — 100.0% 55 / 55