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Codec: avc1.64140b

3.25% Encoder Support
69,784 of 2,148,830 sessions supported encoding
99.8% Decoder Support
2,093,439 of 2,097,605 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,830 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 68 / 867,649 0.11% 109 / 100,492 — 0.02% 125 / 649,232 0.36% 157 / 43,852
SafariSafari
 — 1.5% 724 / 48,215 1.84% 4,012 / 218,357 — —
EdgeEdge
 0.0% 3 / 144,266 0.0% 0 / 1,453 — 0.0% 0 / 4,197 0.0% 0 / 667
FirefoxFirefox
 95.85% 51,307 / 53,526 99.89% 7,332 / 7,340 — 0.0% 0 / 108 97.71% 5,900 / 6,038

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,605 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,656 / 844,859 99.81% 96,693 / 96,876 — 99.63% 636,958 / 639,295 98.35% 41,896 / 42,598
SafariSafari
 — 99.86% 46,740 / 46,804 99.98% 212,801 / 212,842 — —
EdgeEdge
 99.99% 140,293 / 140,302 100.0% 1,413 / 1,413 — 100.0% 4,130 / 4,130 99.55% 657 / 660
FirefoxFirefox
 99.97% 51,743 / 51,758 99.94% 7,118 / 7,122 — 0.0% 0 / 100 98.32% 5,729 / 5,827