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Audio Converter

Convert audio files between formats such as MP3, WAV, AAC, FLAC and OGG.

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MP3WAVAACFLACOGGOGAM4AM4BWMAAIFFAIFCOPUSAC3ALACAUCAFVOCWEBAAMRAPEDSSSHN

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    Drop your files here
    18 file types, including MP3, WAV, AAC, FLAC, OGG, OGA · up to 95MB each

    Supported audio formats

    MP3MPEG Audio Layer IIILiveWAVWaveform AudioLiveAACAdvanced Audio CodingLiveFLACFree Lossless Audio CodecLiveOGGOgg VorbisLiveM4AMPEG-4 AudioLiveWMAWindows Media AudioLiveAIFFAudio Interchange File FormatLiveAMRAdaptive Multi-Rate audioSoonOPUSOpus AudioLiveAC3Dolby DigitalLiveALACApple Lossless Audio CodecLiveAIFCCompressed Audio Interchange FileLiveAPEMonkey's AudioSoonAUSun AudioLiveCAFCore Audio FormatLiveDSSDigital Speech StandardSoonM4BMPEG-4 AudiobookLiveOGAOgg AudioLiveSHNShortenSoonVOCCreative VoiceLiveWEBAWebM AudioLive

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    Frequently asked questions

    Is it really free?

    Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.

    Are my files stored?

    Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.

    Will quality drop?

    For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.

    How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.