Audio Converter: Free Online Audio Format Converter
Convert audio files between any format instantly
Drop a file here or click to browse
MP3, WAV, M4A, FLAC, AAC, and more · first 30 min free
- 99%
- Accuracy
- 99+
- Languages
- Anytime
- Cancel, no contract
- Free
- 10 min every month
Why use Audio Converter?
All Major Formats
Convert between MP3, WAV, M4A, FLAC, AAC, OGG, and WMA. Any input format to any output format.
Quality Control
Choose bitrate and sample rate for your output file. Balance between file size and audio quality.
Lossless Options
Convert to WAV or FLAC for lossless quality. Perfect for audio production and archival.
How it works
Upload Your Audio
Upload one or more audio files in any supported format. We accept MP3, WAV, M4A, FLAC, AAC, OGG, and WMA.
Choose Output Format
Select your target format and adjust quality settings like bitrate and sample rate.
Download Converted File
Click convert and download your new audio file. Conversion takes just a few seconds.
Audio Converter vs typing it out by hand
Why upload-and-go beats manual transcription every time.
| Capability | CATT | Manual transcription |
|---|---|---|
| Time to first draft | Minutes per file | 8 to 10 hours per audio hour |
| Accuracy | 99% on clean audio | Depends on the typist |
| Speaker labels | Automatic | Tagged by hand |
| Languages | 99+ supported | Whatever you speak |
| Exports | TXT, DOCX, PDF, SRT, VTT | Whatever you build by hand |
| Cost | Free for the first 30 minutes | Your time, every time |
Simple pricing
Free for 10 minutes a month. Paid plans start at $9.99.
Cancel anytime. Try the free plan before you upgrade. See all plans
Frequently asked questions
We support MP3, WAV, M4A, FLAC, AAC, OGG, and WMA as both input and output formats. Convert freely between any combination.
Converting between lossy formats (like MP3 to AAC) involves re-encoding. For best quality, convert to lossless formats like WAV or FLAC.
Yes. Upload your WAV file, select MP3 as the output format, choose your preferred bitrate (128-320kbps), and download instantly.
192kbps offers a good balance of quality and file size. Use 320kbps for near-CD quality, or 128kbps for smaller files suitable for voice recordings.