Need iPhone footage as WebM for the web?
VP9 or AV1 in a WebM container, encoded with your machine's hardware where it has it.
Runs in your browser. Your file never leaves your computer.
- EncoderHardware VP9 or AV1
- SizeSmaller than H.264 at par
- No hardware?Chip greys out, says why
- ForBrowsers; players prefer MP4
Web-video pipelines sometimes standardise on WebM, and iPhone footage arrives as MOV. The conversion here encodes VP9 or AV1 using your machine's hardware encoder; where no hardware encoder exists the option shows greyed out with the reason, because software VP9 is too slow to honestly offer. Chrome or Edge on a recent machine is the reliable setup. Expect smaller files than H.264 at matching quality, and expect players outside browsers to prefer the MP4 route instead.
Questions
Why is the WebM option greyed out for me?
This browser has no hardware VP9 or AV1 encoder, and software encoding would take hours. A recent Chrome or Edge typically has one.
Is WebM better than MP4?
Smaller for the same quality in browsers, but MP4 plays in far more places. Choose by destination: web pipeline, WebM; general sharing, MP4.
HEVC source footage too?
Yes, decoded first, in software with a bundled decoder if the browser cannot, then encoded to WebM.
Related conversions
- MOV to MP4iPhone and Mac footage made universal. Already H.264? It repackages in seconds without touching a frame.
- MOV to M4AThe interview, lecture or song from a MOV as a clean M4A, instantly when the soundtrack is already AAC.
- MOV to MP3From video to the one audio format with no compatibility questions. Re-encoded at 320 kbps, locally.
- MP4 to WebMHardware VP9 or AV1 encoding for the toolchains and platforms that want open-format video.
- MKV to WebMContent bound for browser playback, re-encoded with hardware VP9 or AV1 where the machine offers it.
Part of convert video in your browser. Every other conversion is on the conversions index.