Audio Converter

Convert audio between MP3, WAV, FLAC, AAC, and OGG formats. Fast, private, entirely in your browser.

Works offlineNothing uploaded

Output format

Click to select an audio file

Supports MP3, WAV, and other audio formats

Files stay on your device

How to use it

Upload your audio file

Click to select an audio file or drag and drop it onto the upload area.

Choose output format

Select your desired output format such as MP3 or WAV.

Convert

Click the Convert button to start the conversion. Processing happens entirely on your computer.

Download

Download the converted audio file to your device.

When to use Audio Converter

You recorded a podcast interview as a WAV file because your DAW needed lossless audio for editing, but the podcast host's platform only accepts MP3 under 100 MB. Drop the WAV here, select MP3 as the output, and download — the whole conversion takes about as long as the file duration. ffmpeg.wasm compiles a full FFmpeg build to WebAssembly and runs the transcode on your computer, so the multi-hundred-megabyte recording never travels to a server. The same workflow covers switching a folder of lossless FLACs to AAC for a phone with limited storage, or converting a voice memo from a client in M4A to MP3 before dropping it into Adobe Audition.

Convert a podcast WAV master to MP3 before uploading to a hosting platform
Transcode a client's M4A voice memo to MP3 for editing in Adobe Audition
Batch-convert FLAC music files to AAC to reclaim storage on a phone

About this tool

Converting a podcast episode or voice memo to a different format shouldn't require installing software. Drop your audio file here — MP3, WAV, FLAC, AAC, or OGG — pick the output format, and download the converted version in seconds. Useful when a client needs WAV masters instead of the MP3s you recorded, when a platform only accepts OGG, or when you're trimming storage by switching a folder of lossless files to AAC. ffmpeg.wasm handles the transcode via WebAssembly on your own CPU — your file never travels to a server.

Frequently asked

What audio formats are supported?

You can convert between MP3 and WAV formats. More formats may be added in the future.

Is there a file size limit?

There is no hard limit, but very large files may take longer to process since conversion happens entirely on your computer.

Is this audio converter private? Do you upload my audio files?

No uploads. ffmpeg.wasm runs the transcode on your CPU via WebAssembly — the audio file stays on your disk throughout and no bytes are sent to a server.

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