Audio Cutter & Trimmer
Keep the moment. Shape the sound.
- 1Choose audio
- 2Shape your clip
- 3Download
A little less. Exactly right.
Drop an audio file here, or choose a recording.
Preparing the local tool…
MP3, WAV & other browser-supported audio50 MB · 5 minutes · Mono or stereo · No server upload
Your file stays on this device.
Drag the handles or enter exact times. Click the waveform to move the playhead. Arrow keys move a focused handle by 0.01 s, Shift + arrow by 0.1 s.
How to cut your audio
- Choose an audio file from your device.
- Drag the selection handles or enter exact start and end times.
- Preview your edits, choose MP3 or WAV and download your clip.
With the workspace focused, press K to play or pause, I to mark the start, O to mark the end, and Escape to stop. Time fields and sliders work with a keyboard.
Before you begin
Use audio you own or have permission to edit. Open one mono or stereo file, up to 50 MB and 5 minutes. Codec support varies by browser. Encrypted or DRM-protected recordings and live streams are unsupported.
Decoding can use substantial memory. If the device runs out of memory, use a shorter file. Cancellation discards the result. A browser decode already in progress may need to finish before another file can be opened.
Questions about Audio Cutter
Which audio files can I open?
MP3 and standard PCM WAV are widely supported. M4A/AAC, FLAC, Ogg and WebM depend on the codecs installed in your browser. Encrypted, DRM-protected and unsupported files cannot be opened. One file, up to 50 MB and 5 minutes, with one or two channels.
Does trimming preserve the original compressed audio?
Exports are new encodings from decoded audio at 44.1 kHz. MP3 is lossy and can add a short encoder delay or padding. Use WAV for sample-accurate clip boundaries. Original files and source metadata are not copied or changed.
Can I remove a section from the middle?
Yes. Select the interval and choose Remove selection. The audio before and after it is joined in order. Fades affect the start and end of the exported clip, not the internal join. Listen to the join before using the result.
Is normalization a loudness standard?
No. Peak normalization sets the peak to -1 dBFS before the chosen gain is applied. It does not measure LUFS or meet a broadcast loudness standard. Prevent clipping reduces gain when necessary. It cannot repair distortion already present in the source. MP3 encoding can change reconstructed playback peaks.
Where do my recordings go?
Your chosen file, decoded samples, waveform and exports stay in browser memory. No upload, account or advertising step is required. Clear files or leave the page to release the workspace. Downloaded files remain wherever you save them.
MP3 encoding uses LAME through lamejs, licensed under LGPL-3.0. Credits and source information