Convert audio
Upload an audio file, choose the output format, then convert.
Loading converter engine (about 30 MB, one time)...
Private by design: conversion runs entirely in your browser, so your audio never leaves your device.
Convert audio files between MP3, WAV, OGG and WEBM for free. Upload a file, pick the output format, and download the converted audio. Everything runs in your browser.
Upload an audio file, choose the output format, then convert.
Loading converter engine (about 30 MB, one time)...
This tool loads a real audio encoder (FFmpeg) into your browser and runs the conversion on your device. Your file is decoded and re-encoded locally, then handed back to you as a download.
The engine download is about 30 MB and happens once; after that, conversions run offline and your files never touch a server.
MP3 is the universal choice for sharing and phones. WAV is uncompressed and best for editing. OGG Vorbis gives great quality at small sizes for the web, and WEBM with Opus is ideal for voice recordings.
Converting between lossy formats (like MP3 to OGG) cannot restore quality already lost, so keep a lossless original if you plan multiple conversions.