Convert M4A, WAV, OGG, FLAC, MP3 and more between formats — in batches, with no size caps — or pull the audio track out of a video. Everything converts right on your device.
Audio formats never seem to be the one you need. Your phone records voice memos as M4A, the transcription service wants MP3. Your field recorder produces giant WAVs, the podcast host wants something smaller. A client sends "the audio" as a video file. This converter fixes all of it in one place: drop in any mix of files, pick an output format and quality, and convert the whole batch at once — then grab results one by one or as a single ZIP.
Upload-based converter sites have to pay for bandwidth and processing, so they throttle you: file-size caps, daily limits, queues, and "go premium to convert faster" banners. This tool runs FFmpeg — the same engine professional audio software is built on — compiled to WebAssembly and executed by your browser on your hardware. There's no server doing the work, so there's nothing to meter. The only real limit is your device's memory, which comfortably handles hours of audio.
Voice memos, meeting recordings, demos, interviews — audio is personal. Here, your files are read straight from disk into the page and never sent anywhere: the conversion happens in your browser's memory and the results are saved directly back to your device. Close the tab and nothing remains.
Drop the M4A file (the format iPhones use for voice memos) onto the converter, choose MP3 and a bitrate, and download. Batches work too: convert a whole folder and get everything back in one ZIP.
Yes. Drop in a video file and the converter pulls out just the soundtrack in whichever audio format you choose. Handy for turning a recorded talk or performance into a listenable file.
No artificial one. Conversion runs on your own device with FFmpeg compiled for the browser, so an hour-long recording converts as readily as a ringtone, and nothing spends time uploading first.
MP3, M4A, WAV, OGG, and FLAC in both directions, with bitrate control on output. Video inputs are supported for audio extraction.
No. Files are processed entirely in your browser and never travel over the network, which makes the converter safe for interviews, meetings, and anything else you would not hand to a stranger.