How to Convert Audio Files Online
- Upload your files — drag and drop audio files into the area above, or click to browse your device.
- Choose an output format — pick from MP3, WAV, FLAC, AAC, OGG, AIFF, or WebM.
- Select a sample rate — choose between 22 kHz, 44.1 kHz, 48 kHz, or 96 kHz depending on your needs.
- Click "Convert All" — your audio files are converted instantly, right in your browser.
- Download — save individual files or download everything at once.
Supported Audio Formats
AudioConvert.to supports the most popular audio formats. Whether you need to compress a WAV file to MP3 or convert OGG to FLAC, we handle it all.
MP3
The most universal audio format. Lossy compression offering an excellent balance between sound quality and file size.
WAV
Uncompressed audio with perfect quality. The standard for recording, editing, and professional audio production.
FLAC
Lossless compression that reduces file sizes by 50–70% without any degradation in audio quality.
AAC
The successor to MP3 offering better sound quality at similar bitrates. Default format for Apple and YouTube.
OGG
A free, open-source format with Vorbis compression. Popular in video games and online streaming.
AIFF
Uncompressed format developed by Apple. Used in music production and compatible with macOS audio software.
WebM (Opus codec) is also available as an output format depending on your browser's compatibility.
Why Use AudioConvert.to?
- 100% private — your audio files never leave your device. All conversion happens locally in your browser.
- Completely free — no account, no watermarks, no file size limits, no daily caps.
- No installation needed — works in any modern browser on desktop, tablet, or mobile.
- Batch conversion — convert multiple audio files at once and download them all in one click.
- Adjustable sample rate — choose between 22 kHz and 96 kHz to match your quality needs.
- Fast processing — conversions run directly on your hardware, with no server wait times or queues.
Frequently Asked Questions
Is AudioConvert.to really free?
Yes, completely free with no limits. There are no hidden fees, no account required, and no restrictions on the number or size of files you convert.
Are my audio files safe?
Your files never leave your device. AudioConvert.to processes everything locally in your browser using the Web Audio API. No data is uploaded to any server, making it the most private audio converter available online.
What is the best audio format for music?
For maximum lossless quality, choose FLAC. For a good balance of size and quality, MP3 at 320 kbps or AAC are excellent choices. WAV is ideal for editing and production work.
What sample rate should I choose?
44.1 kHz is the CD standard and works for most use cases. 48 kHz is the standard for video. 96 kHz is intended for high-fidelity audio production.
What browsers are supported?
AudioConvert.to works in all modern browsers including Chrome, Firefox, Safari, and Edge. MP3, WAV, FLAC, and AIFF are always available. OGG and WebM depend on your browser's support.
How do I convert MP3 to WAV?
Drop your MP3 file into the converter above, select WAV as the output format, choose your desired sample rate, and click "Convert All". You can also use our dedicated MP3 to WAV converter.