Free online audio tools
Keep the best part of a song, turn it into a ringtone, convert an M4A or WAV to MP3, record your voice or join several clips. Your audio files never leave your device.
| Tool | Category | Processing |
|---|---|---|
| Cut an audio fileKeep a section of an audio file, with fades. | Audio | In your browser |
| Make a phone ringtoneAn MP3 and M4R ringtone from a song. | Audio | In your browser |
| Convert an audio fileChange an audio file's format, several files at once. | Audio | In your browser |
| Convert M4A to MP3An M4A file turned into MP3. | Audio | In your browser |
| Convert WAV to MP3An WAV file turned into MP3. | Audio | In your browser |
| Convert MP3 to WAVAn MP3 file turned into WAV. | Audio | In your browser |
| Convert OGG to MP3An OGG file turned into MP3. | Audio | In your browser |
| Convert FLAC to MP3An FLAC file turned into MP3. | Audio | In your browser |
| Convert AAC to MP3An AAC file turned into MP3. | Audio | In your browser |
| Online voice recorderRecord your voice and export it to MP3. | Audio | In your browser |
| Merge audio filesSeveral audio files joined into one. | Audio | In your browser |
| Extract audio from videoGet a video's sound as MP3, M4A or WAV. | Audio | In your browser |
| MP4 to MP3 converterTurn an MP4 video into an MP3 file. | Audio | In your browser |
| Convert WhatsApp voice notes to MP3WhatsApp .opus and .ogg voice messages to MP3, in bulk. | Audio | In your browser |
About these tools
Voice notes, podcasts, music, meeting recordings: audio files come in many formats (MP3, M4A, WAV, OGG, FLAC, AAC), and you often need to shorten, convert or join them before sharing.
These tools read and write audio with the open-source Mediabunny library and the codecs built into your browser. The waveform, fades and encoding are computed on your device: no file is uploaded, which matters for a private or work recording.
There's no account, no audio watermark and no length limit set by the site: only your device's memory counts. A computer processes an hour of audio in seconds; an older phone may take a little longer.
Which tool should I use?
Keep one part
“Cut audio” saves only the section chosen on the waveform, with a fade in and fade out.
Make a ringtone
“Ringtone maker” cuts up to 30 seconds and exports MP3 for Android and M4R for iPhone.
Change the format
“Audio converter” turns M4A, WAV, OGG, FLAC or AAC into MP3, and the other way round.
Record your voice
“Voice recorder” records the microphone, lets you listen back and exports to MP3.
Join several files
“Merge audio” puts several clips end to end, with a gap or a crossfade.
Get the sound from a video
“Extract audio” and “MP4 to MP3” save a video's soundtrack as MP3, M4A or WAV.
Frequently asked questions
Are my audio files uploaded to a server?
No, all processing happens in your browser.
Which formats are supported?
MP3, M4A, WAV, OGG, FLAC and AAC, plus the sound of MP4, MOV, WebM and MKV videos.
Is there a length limit?
No limit set by the site: it depends on your device's memory.
Is quality preserved?
MP3 is encoded at 192 kbps by default; WAV and FLAC keep the original quality losslessly.