Audio

Convert audio between MP3, WAV, OGG, FLAC, AAC, M4A, OPUS.

20 free audio tools — no sign-up, runs in your browser.

AudioFree

MP3 to WAV

Convert MP3 audio to uncompressed WAV — free online, no upload.

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AudioFree

WAV to MP3

Convert WAV audio to MP3 with selectable VBR quality — free online, no upload.

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AudioFree

MP3 to OGG

Convert MP3 audio to Ogg Vorbis — free online, no upload.

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AudioFree

OGG to MP3

Convert Ogg Vorbis audio to MP3 with selectable quality — free online, no upload.

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AudioFree

MP3 to FLAC

Convert MP3 audio to FLAC (lossless) — free online, no upload.

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AudioFree

FLAC to MP3

Convert FLAC lossless audio to MP3 — free online, no upload.

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AudioFree

MP3 to AAC

Convert MP3 audio to AAC with selectable bitrate — free online, no upload.

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AudioFree

AAC to MP3

Convert AAC or M4A audio to MP3 — free online, no upload.

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AudioFree

MP3 to M4A

Convert MP3 audio to M4A (AAC in MP4 container) — free online, no upload.

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AudioFree

M4A to MP3

Convert M4A audio (AAC in MP4) to MP3 — free online, no upload.

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AudioFree

WAV to FLAC

Convert WAV audio to FLAC (lossless, smaller files) — free online, no upload.

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AudioFree

FLAC to WAV

Convert FLAC lossless audio to uncompressed WAV — free online, no upload.

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AudioFree

MP3 to Opus

Convert MP3 audio to Opus with selectable bitrate — free online, no upload.

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AudioFree

WAV to OGG

Convert WAV audio to Ogg Vorbis — free online, no upload.

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AudioFree

OGG to WAV

Convert Ogg Vorbis audio to uncompressed WAV — free online, no upload.

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AudioFree

FLAC to OGG

Convert FLAC lossless audio to Ogg Vorbis — free online, no upload.

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AudioFree

AAC to WAV

Convert AAC audio (.aac, .m4a) to uncompressed WAV — free online, no upload.

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AudioFree

M4A to WAV

Convert M4A audio to uncompressed WAV — free online, no upload.

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AudioFree

Audio Trimmer

Cut a clip from an audio file — MP3, WAV, OGG, FLAC, M4A, AAC.

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AudioDivider

Audio Divider

Split MP3, WAV, M4A, AAC, OGG, FLAC, and OPUS audio into clips in your browser.

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Frequently asked

Are TopTool audio converters free?

Yes. MP3, WAV, OGG, FLAC, AAC, M4A, and OPUS conversions are all free and unlimited.

Do audio conversions run on my device?

Yes. TopTool audio tools use the Web Audio API to decode and encode formats locally. Files never leave your browser.

Is there a length or size limit?

There is no fixed limit. Conversion speed is bound by your device's CPU and memory. Most files under a few hundred MB convert in seconds.