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Convert MP3 to AAC

Counter MP3 → AAC
Drop your files here .mp3

    MP3 is lossy, and some audio editors, phone systems and tools want uncompressed sound. AAC delivers better sound than MP3 at the same bitrate.

    • Free
    • No sign-up
    • Batch conversion

    Why convert MP3 to AAC?

    To convert MP3 files to AAC, drop them on the counter above.

    Most files convert in seconds: no queue, no email address, and the AAC result saves straight to your computer or phone.

    How to convert MP3 to AAC

    1. Add your MP3 files

      Drag your MP3 files onto the counter or pick them with Choose files. You can add several at once.

    2. Check the settings

      The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.

    3. Conversion starts by itself

      Each file is converted to AAC and its row is stamped CONVERTED.

    4. Download your AAC file

      Get the file with Download. With several files you can download them all as one ZIP.

    MP3 vs AAC

    PropertyMP3AAC
    Full nameMPEG-1 Audio Layer IIIAdvanced Audio Coding
    TypeAudioAudio
    CompressionLossyLossy
    Created byFraunhofer IIS / MPEGMPEG
    Year19931997
    Extensions.mp3.aac .adts
    MIMEaudio/mpegaudio/aac

    About the formats

    MP3

    MPEG-1 Audio Layer III

    MP3 is the most widespread audio format in the world. Lossy compression shrinks files to about a tenth of WAV, and it plays on every device.

    All MP3 conversions

    AAC

    Advanced Audio Coding

    AAC is the lossy audio codec developed as the successor to MP3. YouTube, Apple and streaming services use it; .aac files are a raw AAC stream.

    All AAC conversions

    Frequently asked questions

    Is converting MP3 to AAC free?

    Yes, completely free. No account, no daily limit, no watermark and no queue.

    Does it work on a phone?

    Yes. It works on iPhone, iPad and Android, with no app to install.

    Is there a file size limit?

    There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.

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