Free Audio Tools
Cut a song for a ringtone, join voice notes, remove long pauses from a podcast, speed up a lecture without chipmunk voices, record your voice, or fix the tags and cover art on your MP3s.
Audio is decoded and processed in your browser with the Web Audio API — nothing is uploaded. Edited audio is saved as lossless WAV.
15 free tools · No sign-up · Works on phones and computers
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Popular audio tools
- Audio TrimmerCut the part of a song or recording you want — or cut a section out — with a visual waveform.
- Audio MergerJoin several audio files into one, back to back, with a gap or with a smooth crossfade.
- Volume Changer & NormalizerMake audio louder or quieter, normalize the peak, or match loudness — with a soft limiter.
- Voice RecorderRecord your voice from your microphone with a live level meter, pause and WAV download.
- MP3 Tag Editor (ID3)Edit the title, artist, album, year, genre, track number and cover art of MP3 files.
All audio tools
Grouped by what they help you do.
15 tools
- Audio TrimmerPopularCut the part of a song or recording you want — or cut a section out — with a visual waveform.
- Audio MergerPopularJoin several audio files into one, back to back, with a gap or with a smooth crossfade.
- Audio SplitterSplit audio into equal parts, fixed lengths, at chosen times or automatically at silences.
- Reverse AudioPlay any sound or song backwards and download the reversed audio.
- Volume Changer & NormalizerPopularMake audio louder or quieter, normalize the peak, or match loudness — with a soft limiter.
- Audio Fade In & OutAdd a smooth fade-in at the start and fade-out at the end, with four curve shapes.
- Audio Speed ChangerSpeed up or slow down audio from 0.5× to 2.5× — with or without changing the pitch.
- Audio Pitch ChangerShift the pitch up or down by semitones while keeping the length — change key or voice.
- Silence Remover & DetectorFind pauses and dead air, then remove them or trim silence from the start and end.
- Voice RecorderPopularRecord your voice from your microphone with a live level meter, pause and WAV download.
- Audio Waveform GeneratorTurn audio into a waveform image — bars, mirrored or filled — as PNG or SVG.
- Audio SpectrogramSee the frequencies in a recording over time and spot fake lossless or noisy audio.
- MP3 Tag Editor (ID3)PopularEdit the title, artist, album, year, genre, track number and cover art of MP3 files.
- Album Art ExtractorSave the embedded cover art from MP3, FLAC and M4A files, and see their tags.
- Audio Bitrate & File Size CalculatorWork out audio file size from bitrate and length — or the bitrate or duration that fits.
Good to know
Why do edited files download as WAV?
Browsers can decode MP3, AAC and other compressed formats, but they can't encode MP3. WAV is uncompressed, so your edit loses no quality and plays everywhere — it's just larger (about 10 MB per minute in stereo). Your music app or phone can convert it to MP3 or AAC if you need a smaller file.
Decibels in one minute
0 dBFS is the loudest a digital file can be; everything else is negative. +6 dB doubles the signal level, and +10 dB sounds roughly twice as loud. Normalizing to −1 dBFS makes a file as loud as possible without clipping.
Audio tools: common questions
Are my recordings and files uploaded?
No. Everything — decoding, editing, recording and tag editing — happens in your browser.
Which formats can I open?
Anything your browser can play: MP3, WAV, M4A/AAC, OGG/Opus and FLAC in most modern browsers, plus WebM. Safari doesn't open OGG files on older versions.
Is there a length limit?
Files up to 300 MB can be opened. Very long recordings use a lot of memory, so on phones keep edits under about an hour.
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