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Codec: avc1.42140a

4.61% Encoder Support
2,893 of 62,778 sessions supported encoding
99.92% Decoder Support
11,859 of 11,869 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,778 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
0.03% 7 / 27,531 0.05% 2 / 4,413 0.19% 23 / 12,215 0.7% 11 / 1,570
SafariSafari
2.66% 44 / 1,655 1.66% 116 / 6,983
EdgeEdge
0.0% 0 / 4,984 0.0% 0 / 51 0.0% 0 / 95
FirefoxFirefox
95.74% 2,090 / 2,183 100.0% 316 / 316 97.44% 266 / 273

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,869 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.94% 5,223 / 5,226 99.85% 648 / 649 100.0% 2,288 / 2,288 98.95% 376 / 380
SafariSafari
100.0% 291 / 291 100.0% 1,387 / 1,387
EdgeEdge
100.0% 1,016 / 1,016 100.0% 11 / 11 100.0% 25 / 25
FirefoxFirefox
100.0% 409 / 409 100.0% 59 / 59 100.0% 52 / 52