utils.asiaConvert to MP4
Convert MOV, MKV, WebM and AVI-style videos to MP4 that plays everywhere, right in your browser.
Common questions
How does Convert to MP4 work?
Drop in one or more video files and press Convert to MP4. The video track is only copied as-is when it's already H.264 or HEVC, and the audio track only when it's already AAC or MP3 — those are the codecs that play back on virtually every phone, TV and app. Anything else (VP8, VP9, AV1, Opus, Vorbis, ...) is decoded and re-encoded so the exported MP4 actually plays everywhere, not just in browsers that support the original codec.
Can I trust the output for production?
Your videos never leave your device — everything runs locally in your browser with WebCodecs. Nothing is uploaded to a server.
Will this tool stay free?
Free, with no sign-up, no watermark and no limit on how many files you convert.