Audio converter for every common format: convert between MP3, WAV, M4A, FLAC, OGG and OPUS in a few taps, right in your browser. Pick the format you need, choose the quality, and download. It’s free, there’s no sign-up, and your audio never leaves your device.
How to use the audio converter
- Tap Choose file and pick your audio file.
- Under Save as, pick the format you need. The estimated file size updates as you choose.
- Press the Convert button.
- Listen to the result and press Download audio.
Which format should I choose?
- MP3. Plays on everything: phones, cars, computers and old devices.
- M4A (AAC). Great quality at small sizes, and the natural choice for iPhone, iPad and Mac.
- WAV. Uncompressed, full quality. Best for editing and music production, but files are large.
- FLAC. Full quality like WAV, but roughly half the size. Ideal for archiving music.
- OGG. An open format used by many games and Android apps.
- OPUS. The smallest files for the quality, and excellent for speech, podcasts and voice messages.
Why use this audio converter?
Most online converters upload your file, process it on their server and make you wait. This audio converter does the work in your own browser, so it’s private and there’s no upload time. It also handles awkward formats like WMA, AIFF and the audio from video files, and it carries over details like title and artist where the new format supports them.
How the audio converter works
The audio converter is powered by FFmpeg, the free, open-source engine behind many professional audio and video apps. It includes encoders for MP3, AAC, FLAC, Vorbis and Opus. A version built to run inside your browser converts your file on your own device, giving you the same results as desktop software with nothing to install.
More free audio tools
- MP3 Cutter: Cut MP3s and make ringtones
- Audio Trimmer: Trim WAV, M4A and other recordings
- MP3 Converter: Turn WAV, M4A or FLAC files into MP3
- MP4 to MP3 Converter: Get the sound from an MP4 video
- Video to MP3 Converter: Extract audio from MOV, WebM and MKV videos
Audio converter FAQ
Which formats can I convert from?
MP3, WAV, M4A, AAC, FLAC, OGG, OPUS, WMA and AIFF, plus the sound from MP4, MOV, WebM, AVI and MKV videos.
Does converting lose quality?
Converting to WAV or FLAC keeps every detail of your file. Converting to MP3, M4A, OGG or OPUS makes the file smaller. At the Recommended quality, the difference isn’t noticeable for most listening.
Is the audio converter free?
Yes. No account, no watermark and no limit on the number of files.
Are my files uploaded?
No. Everything happens in your browser on your own device. Nothing is uploaded or stored.
How big can my file be?
Up to 150 MB on a phone or tablet and 500 MB on a computer.