Free Online Tool
Audio Converter
Choose an audio file you own and convert it in your browser, including FLAC to MP3, MP3 to FLAC, WAV to FLAC, and FLAC to OGG conversions. This tool does not support external URLs or video platform downloads.
Selected audio files are not uploaded to a server and are processed only in your browser.
Only use audio files that you own or have the right to convert. Do not convert or distribute copyrighted files without permission.
MP3, OGG, and FLAC conversion load ffmpeg.wasm in the browser when needed. FLAC is lossless, but converting a lossy file to FLAC does not restore lost quality.
Original Preview
Converted Preview
Choose an audio file to see details.
The result will appear here.
Selected audio files are not uploaded to a server and are processed only in your browser.
Choosing an Output Format
- MP3 for compatibility and smaller files
- WAV for uncompressed editing
- OGG for an open web-oriented format
- FLAC for lossless storage
Lossy and Lossless
MP3 and OGG are lossy formats. FLAC is lossless, but converting MP3 to FLAC does not restore quality that was already lost.
How to Use
- Choose an audio file to convert.
- Select the output format.
- Choose a bitrate or FLAC compression setting if needed.
- Click the convert button.
- Download the converted file when conversion is complete.
Examples
- Convert a FLAC file to MP3 for compatibility
- Convert a WAV file to FLAC for lossless compression
- Convert an MP3 file to WAV for editing
- Convert an OGG file to FLAC as a lossless output container
Calculation and Conversion Notes
Audio conversion works by decoding the selected audio file in the browser and re-encoding it using the selected output format and quality settings. Input supports MP3, WAV, OGG, FLAC, M4A, and AAC, while output supports MP3, WAV, OGG, and FLAC. FLAC is lossless, but converting a lossy file such as MP3 or OGG to FLAC does not restore audio quality that has already been lost. Selected files are not uploaded to a server and are processed only in your browser.
Browser Processing Notes
Large audio files can use significant memory before conversion. Keep the page open during processing and test the result after download.
FAQ
What is the difference between MP3 and FLAC?
MP3 is lossy and smaller. FLAC is lossless but can be larger.
Does MP3 to FLAC improve sound quality?
No. Converting to FLAC does not restore quality already lost in MP3.
When should I use WAV output?
Use WAV when you need an uncompressed editing-friendly file. It can be large.
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