Audio Converter
Audio Converter is a free online tool that lets you convert audio between MP3, WAV, OGG, AAC, and M4A. It runs entirely in your browser — no sign-up, no watermark, and your files are never uploaded.
Free · unlimited · processed privately in your browser
Your files stay private — 100% in your browser
We never upload your files, photos, or videos to any server. Everything is processed directly in your browser, so your data never leaves your device. That means zero privacy worries — no one else can ever see or store what you convert.
- No uploads
- Processed on your device
- No sign-up needed
About Audio Converter
Audio Converter is a free online tool that lets you convert audio between MP3, WAV, OGG, AAC, and M4A. There is no sign-up, no watermark, and no limit on how many times you can use it. The whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
After you upload
Pick the output format, then run it. Advanced Options let you set the bitrate, sample rate, channels, volume and trim.
Options explained
- Bitrate
- For lossy formats, higher kbps means better quality and a bigger file. 'Auto' picks a sensible default; lossless formats ignore this.
- Sample rate
- How many audio samples per second. Keep original unless you need a specific rate like 44.1 kHz (CD) or 48 kHz (studio).
- Channels & volume
- Switch between stereo and mono, and raise or lower the loudness. Mono halves the size of voice recordings.
How to use Audio Converter
- 1Click Choose Files and upload your file.
- 2Adjust any available options for your needs.
- 3Press Run to process the file in your browser.
- 4Download your result instantly.
Frequently asked questions
Is Audio Converter free?
Yes — Audio Converter is free to use as often as you like, with no account, no caps, and no watermark on the output.
Do I need to install anything?
Nothing to install. Audio Converter works inside your web browser on desktop and mobile — no app, codecs, or plugins needed.
Are my files uploaded to a server?
No. Your media files are processed on your own device and never sent to a server, so they stay private.
How to convert an audio file?
Use Audio Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
How to convert audio to mp3?
Use Audio Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.
What is the best free audio converter?
Use Audio Converter above: upload your file, run it, and download the result. It is free with no limits or sign-up, and the whole process happens on your own device using your browser, so your media is never uploaded and nobody else can access it.