Category
Audio
Convert audio between MP3, WAV, OGG, FLAC, AAC, M4A, OPUS.
20 free audio tools — no sign-up, runs in your browser.
MP3 to WAV
Convert MP3 audio to uncompressed WAV — free online, no upload.
Open tool →WAV to MP3
Convert WAV audio to MP3 with selectable VBR quality — free online, no upload.
Open tool →MP3 to OGG
Convert MP3 audio to Ogg Vorbis — free online, no upload.
Open tool →OGG to MP3
Convert Ogg Vorbis audio to MP3 with selectable quality — free online, no upload.
Open tool →MP3 to FLAC
Convert MP3 audio to FLAC (lossless) — free online, no upload.
Open tool →FLAC to MP3
Convert FLAC lossless audio to MP3 — free online, no upload.
Open tool →MP3 to AAC
Convert MP3 audio to AAC with selectable bitrate — free online, no upload.
Open tool →AAC to MP3
Convert AAC or M4A audio to MP3 — free online, no upload.
Open tool →MP3 to M4A
Convert MP3 audio to M4A (AAC in MP4 container) — free online, no upload.
Open tool →M4A to MP3
Convert M4A audio (AAC in MP4) to MP3 — free online, no upload.
Open tool →WAV to FLAC
Convert WAV audio to FLAC (lossless, smaller files) — free online, no upload.
Open tool →FLAC to WAV
Convert FLAC lossless audio to uncompressed WAV — free online, no upload.
Open tool →MP3 to Opus
Convert MP3 audio to Opus with selectable bitrate — free online, no upload.
Open tool →WAV to OGG
Convert WAV audio to Ogg Vorbis — free online, no upload.
Open tool →OGG to WAV
Convert Ogg Vorbis audio to uncompressed WAV — free online, no upload.
Open tool →FLAC to OGG
Convert FLAC lossless audio to Ogg Vorbis — free online, no upload.
Open tool →AAC to WAV
Convert AAC audio (.aac, .m4a) to uncompressed WAV — free online, no upload.
Open tool →M4A to WAV
Convert M4A audio to uncompressed WAV — free online, no upload.
Open tool →Audio Trimmer
Cut a clip from an audio file — MP3, WAV, OGG, FLAC, M4A, AAC.
Open tool →Audio Divider
Split MP3, WAV, M4A, AAC, OGG, FLAC, and OPUS audio into clips in your browser.
Open tool →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.