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Audio Converter

Convert audio between MP3, M4A, WAV, FLAC and OGG.

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Plays everywhere. The usual choice for music and podcasts.

Quality
More options

MP3, WAV, M4A, AAC, FLAC, OGG, Opus, or the sound from MP4, MOV, MKV and WebM videos

Drop more files anywhere on this page, or

    Runs on your device. No upload wait.

    What you get

    • Every common format
    • Batch

    Questions

    Which format should I choose?

    MP3 plays on everything. M4A (AAC) sounds a little better at the same size and is what iPhones and iTunes use. WAV and FLAC are lossless: pick them for editing or archiving, FLAC being about half the size of WAV. OGG here holds Opus, the most efficient of all, but some car stereos and older players can’t play it.

    Does converting MP3 to WAV or FLAC improve the quality?

    No. Quality lost when a file was first compressed can’t come back; a WAV made from an MP3 sounds exactly like the MP3, just larger. Convert to WAV or FLAC when an editor or device needs it, not for better sound.

    What bitrate should I use for MP3?

    192 kbps is transparent for most listeners and most music. 320 kbps is the highest MP3 allows and suits archiving from a lossless source. 128 kbps is fine for speech and background listening. Converting a 128 kbps file to 320 kbps only makes it bigger.

    Why is my file “kept exactly as it was”?

    Converting a file into its own lossy format (MP3 to MP3, say) would decode and re-compress it, losing a little quality and gaining nothing. So the file is passed through untouched. Use the Audio Compressor to make it smaller on purpose.

    Can it convert the sound from a video?

    Yes. Drop an MP4, MOV, MKV or WebM video and you get its soundtrack in the format you choose. The MP4 to MP3 converter does exactly that with MP3 preselected.

    Is it free? Do I need an account?

    It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

    Missing something, or not working as it should? Tell us