Audio & video

Convert audio to MP3 or WAV

Convert compatible MP3, WAV, M4A, AAC, OGG, FLAC, Opus and WMA audio into MP3 or WAV in your browser. Codec variants and available device memory determine whether a file can be processed.

No server upload No signup Up to 75 MB per file

Drag files here

This tool processes one file at a time.

MP3, WAV, M4A, AAC, OGG, FLAC, OPUS, WMA · Up to 75 MB per file

Local browser processing — Source files are not sent to our server for conversion.

How to convert an audio file

Choose a practical output for listening, sharing or editing.

Choose one supported audio file.
Choose MP3 for a compact result or WAV for uncompressed output.
Start conversion and keep the tab open while the local audio engine works.
Download the result, or review the recovery guidance if the file is unsupported or damaged.

Common audio containers and codecs

An extension can describe a container, while the encoded audio inside determines whether the local decoder can read it.

MP3, WAV, M4A, AAC, OGG, FLAC, Opus or WMA audio: MP3, WAV, M4A, AAC, OGG, FLAC, OPUS, WMA
MP3 or WAV audio: MP3, WAV

MP3 is compact and widely compatible but uses lossy compression.
WAV output is uncompressed and often much larger; converting to WAV does not restore detail already removed from a lossy source.

Choose MP3 or WAV for the next step

The best output depends on compatibility, storage and editing needs.

Use MP3 for convenient playback, email or devices with limited storage.
Use WAV when an editor, transcription workflow or application specifically requests it.
Create a consistent output format for an audio file before using it in another application.

Output size and sound quality

Changing formats does not improve the source recording, and repeated lossy conversion can reduce quality.

WAV results can be substantially larger than the input, especially for long recordings.
A long or high-rate recording still needs enough browser memory to decode safely.

Audio conversion on your device

Supported audio files are decoded and encoded locally and are not uploaded for conversion.

Lazy-loaded same-origin engine assets contain conversion code only and never include selected audio data.
Clear the job after downloading to release its temporary tab data.

FAQ

Frequently asked questions

Which output should I choose?

Choose MP3 for smaller, widely playable files. Choose WAV when you need uncompressed audio or an application specifically requires it.

Why is a WAV result much larger?

WAV output stores uncompressed audio, so long or high-rate recordings use substantially more space.

Are all files with these extensions supported?

No. Unusual codec profiles, protected media and damaged files may not be readable even when the extension is listed.