← Back to Codec Support Table

Codec: avc1.420c16

85.51% Encoder Support
53,590 of 62,669 sessions supported encoding
99.93% Decoder Support
11,770 of 11,778 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,669 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.76% 27,490 / 27,555 99.98% 4,220 / 4,221 — 99.73% 12,218 / 12,251 98.61% 1,559 / 1,581
SafariSafari
 — 2.81% 47 / 1,673 1.61% 111 / 6,905 — —
EdgeEdge
 100.0% 5,073 / 5,073 98.04% 50 / 51 — 100.0% 88 / 88 93.33% 14 / 15
FirefoxFirefox
 95.75% 2,072 / 2,164 100.0% 324 / 324 — 0.0% 0 / 10 98.22% 276 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,778 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,204 / 5,206 100.0% 637 / 637 — 100.0% 2,195 / 2,195 99.17% 359 / 362
SafariSafari
 — 100.0% 278 / 278 100.0% 1,399 / 1,399 — —
EdgeEdge
 100.0% 1,083 / 1,083 — — 100.0% 25 / 25 —
FirefoxFirefox
 100.0% 407 / 407 100.0% 44 / 44 — — 100.0% 49 / 49