Free online audio tools
Convert, trim, compress, join and extract audio without uploading it. Every tool runs on your own device.
Audio is the least fussy of the file types — the files are small, the formats are well behaved, and almost everything plays MP3. That makes the jobs quick: change the format, cut out the bit you want, make the file smaller, or lift the sound out of a video.
All eleven tools here work in the browser, so nothing is uploaded and there is no queue to wait in. They are free, there is no watermark, and there is no cap on how many files you run through them.
Starting from a video file? See the video tools.
Audio tools
WAV to MP3
Convert uncompressed WAV audio into high-bitrate MP3 files free with 320kbps support. Runs entirely in your browser — nothing is uploaded. No signup.
Audio Converter
Convert audio between MP3, WAV, M4A, FLAC and OGG free, with bitrate, sample rate and channel control. Runs in your browser — nothing is uploaded. No signup.
Audio Trimmer
Cut audio clips, trim songs and build custom ringtones free. Runs in your browser, so nothing is uploaded. No signup, no watermark, no cap on length.
Audio Compressor
Shrink MP3, WAV and M4A files free by lowering bitrate, sample rate or channel count. Runs in your browser, so nothing is ever uploaded. No signup, no cap.
Audio Extractor
Extract the original audio track from any video file and save it as WAV, MP3, M4A or FLAC. Runs in your browser, so nothing is uploaded. Free, no signup.
Audio Joiner
Merge audio files into one continuous track free, even when the sample rates differ. Runs in your browser, so nothing is uploaded. No signup, no size cap.
M4A to MP3
Convert Apple M4A and AAC voice memos into universal MP3 audio files free in your browser. Choose bitrates up to 320 kbps. Runs locally with no signup.
FLAC to MP3
Convert lossless FLAC audio to lightweight MP3 files free in your browser. Choose bitrates up to 320 kbps for great sound. No signup, nothing uploaded.
MP3 to WAV
Convert MP3 audio into uncompressed WAV format free in your browser. Perfect for video editors, DAWs and game engines. Fast, local, no signup needed.
Audio Loudness Normalizer
Normalize audio loudness to exact YouTube, Spotify, and podcast LUFS targets. Master sound levels in your browser with zero data uploads. Free.
Voice Recorder
Record your voice with a live waveform and save the audio.
Which audio tool do I need?
Find the job you are trying to do and use the tool that does it.
| What you are trying to do | Use this tool |
|---|---|
| Change the format — MP3, WAV, M4A, FLAC, OGG | Audio Converter |
| Cut a clip down or make a ringtone | Audio Trimmer |
| Make the file smaller | Audio Compressor |
| Join several files into one track | Audio Joiner |
| Pull the sound out of a video | Audio Extractor |
| Record your voice instead of typing it | Voice Recorder |
| Keep the original quality, just change container | Audio Extractor |
Popular audio conversions
- Convert WAV to MP3
- Convert M4A to MP3
- Convert FLAC to MP3
- Convert OGG to MP3
- Pull the audio out of a video as MP3
Questions
Do I have to upload my audio?
No. The file is read from your device, processed in the browser, and handed back. Nothing is uploaded and nothing is kept.
Which format should I use?
MP3 is the safe universal choice and is supported everywhere. WAV is uncompressed and large. M4A and AAC are more efficient than MP3 at the same quality. FLAC is lossless and best for archiving.
Does converting to MP3 reduce quality?
Yes, somewhat — MP3 is a compressed format. At 192 kbps or above most people cannot hear the difference from the original on ordinary speakers.
Is there a file size or length limit?
No fixed limit. Very long recordings are bounded by your device's memory rather than by anything we set.
Are these audio tools free?
Yes. Free to use, no watermark, no daily limit.