Audio tools
Record, edit, convert and inspect audio on your device.
Files are not uploaded. Processing happens locally in your browser.
All tools
Cut audio
Keep a section or remove a range from a recording.
Open toolMerge audio
Arrange recordings and join them into one audio file.
Open toolSplit audio
Divide a recording by duration, count or time points.
Open toolConvert audio
Convert between MP3, WAV, M4A, FLAC and OGG.
Open toolCompress audio
Make a smaller MP3 by choosing its bitrate.
Open toolChange volume
Make a recording louder or quieter.
Open toolVoice recorder
Record, pause, listen and trim before saving.
Open toolExtract audio from video
Choose an audio track and save the part you need.
Open toolChange audio speed
Speed up or slow down, with optional pitch preservation.
Open toolChange audio pitch
Shift pitch by semitones while keeping the tempo.
Open toolAudio equalizer
Adjust frequency bands or start with a preset.
Open toolNormalize loudness
Set a LUFS target and compare measured loudness.
Open toolRemove silence
Find quiet pauses, review the cuts and keep natural gaps.
Open toolEdit audio metadata
Edit tags and cover art without re-encoding audio.
Open toolReduce noise
Reduce steady hiss and background noise with a preview.
Open toolSeparate vocals and backing
Separate a song locally and listen to both stems.
Open toolTranscribe audio
Transcribe on your device, review and export text or subtitles.
Open toolMix audio
Layer recordings with individual timing, trim and volume.
Open toolFind BPM and key
Estimate tempo and musical key from a local audio file.
Open toolMicrophone test
Check input level and record a short playback test.
Open toolReverse audio
Play a recording backwards and export the result.
Open toolLoop audio
Repeat a recording the number of times you choose.
Open toolFade audio in and out
Set smooth starting and ending fades.
Open toolAdd reverb
Add room reflections and adjust the decay and amount.
Open toolAudio channels
Convert to mono or stereo, extract or swap channels.
Open toolAudio spectrogram
View frequency changes across the recording and save an image.
Open toolFrequently asked questions
Are my files uploaded?
Files are not uploaded. Processing happens locally in your browser.
Will audio quality or metadata change?
Original-frame cuts and metadata editing copy encoded audio. Effects and format conversions re-encode it. Metadata support varies by container; check the export comparison.
Does time-based renaming change the recording date?
No. It changes only the download name. The time is calculated from the reference you choose and the actual exported duration; it is not a verified recording start time. A shorter file can still be compared with its original.
What happens if I refresh or close the page?
Download first: closing or refreshing clears your files.