Convert your audio files between MP3, WAV, OGG and M4A. Free, no sign-up, 100% in your browser — your audio is not uploaded.
Converting audio gets you out of trouble when a file won’t play where you need it: turning a WAV into MP3 so it’s smaller and fits in an email, an M4A into MP3 for an old player or a car stereo, or an MP3 into uncompressed WAV for editing. Most online converters upload your file to a server; fetchio.io does the opposite: conversion runs inside your browser with ffmpeg compiled to WebAssembly, so the audio never leaves your device. The first time, the engine (a few MB) is downloaded and cached. You pick the output format —MP3, WAV, OGG or M4A— and get the file instantly, with no watermarks and no daily limits.
Drag it or click to choose it. Nothing is uploaded.
MP3, WAV, OGG or M4A, depending on where you’ll play it.
Your converted audio, instantly and watermark-free.
No. Conversion happens in your browser with ffmpeg; the file never leaves your device. Only the engine is downloaded the first time.
It converts between MP3, WAV, OGG and M4A, the most common formats for music, voice and audio messages.
Converting to an uncompressed format like WAV keeps the quality; converting to MP3 or OGG compresses, but at a good bitrate the difference is imperceptible to the ear.
There’s no fixed limit: since everything runs locally, the only cap is your device’s memory.
fetchio.io never uploads your audio, adds no watermarks, and doesn’t cap how many conversions you do per day. Everything is free and processed in your browser.