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Convert FLV to AAC

Extract the audio from FLV videos and save it as AAC — ideal for efficient music files and broadcast audio.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    How to convert FLV to AAC

    1. 1

      Tap Choose files and select one or more FLV files (or drag them in).

    2. 2

      Check that AAC is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your AAC downloads automatically. Converting several files? Grab them all as a ZIP.

    FLV vs AAC

    Only the sound is kept — the picture is dropped, so the AAC file is far smaller than the FLV video.

    FLVAAC
    Full nameFlash VideoAdvanced Audio Coding (raw ADTS)
    TypeVideoAudio
    CompressionLossyLossy
    Developed byAdobeMPEG
    Introduced20021997
    Plays on iPhone✕ No✓ Yes
    Plays on Android◐ Partly / with an app✓ Yes
    Plays on Windows◐ Partly / with an app✓ Yes
    Plays on Mac✕ No✓ Yes

    About FLV and AAC

    FLV: FLV is the Flash Video format that powered early YouTube. Flash is gone, so FLV files usually need converting to play today.

    AAC: AAC is the successor to MP3 and the audio codec behind YouTube, iTunes and most streaming services. A .aac file stores the raw AAC stream without an MP4 wrapper.

    Frequently asked questions

    How do I convert FLV to AAC on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your FLV, make sure AAC is selected and tap Convert. The AAC file is saved to your Downloads.
    Will converting FLV to AAC reduce quality?
    Only the sound is kept — the picture is dropped, so the AAC file is far smaller than the FLV video.
    Can I convert only part of the FLV?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this FLV to AAC converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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    Convert FLV to other formats

    FLV to MP4FLV to MOVFLV to MKVFLV to WEBMFLV to AVIFLV to WMVFLV to 3GPFLV to M4VFLV to MPGFLV to TSFLV to GIFFLV to MP3FLV to M4AFLV to M4RFLV to ALACFLV to WAVFLV to FLACFLV to OGGFLV to OPUSFLV to WEBAFLV to WMAFLV to AIFFFLV to AC3FLV to CAF

    Convert other formats to AAC

    MP3 to AACM4A to AACM4R to AACALAC to AACWAV to AACFLAC to AACOGG to AACOPUS to AACWEBA to AACWMA to AACAIFF to AACAC3 to AACCAF to AACAMR to AAC3GA to AACAPE to AACMP4 to AACMOV to AACMKV to AACWEBM to AACAVI to AACWMV to AAC3GP to AACM4V to AACMPG to AACTS to AACGIF to AACMTS to AACVOB to AACHEVC to AACRMVB to AAC

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