Precise waveform trimming
Drag the side handles to keep a segment, or enter start and end times in seconds. Dimmed audio outside the selection is excluded from preview and export.
Smart Audio Cutter
Your sound. Precisely cut.
Drop your audio here
Open an audio file to start editing.
Supported formats: MP3 · WAV · M4A · AAC · FLAC · OGGSelection 00:00.000 – 00:00.00000:00.000Click inside the selection to seek
All audio processing stays in your browser.
Cut audio online and keep the part you need
Zolkit Smart Audio Cutter is an online audio editor that processes audio locally in your browser. Extract a clip from a song, podcast, interview or recording, adjust volume, speed and pitch, then preview and export a new file. Your original stays unchanged, with no desktop software to install.
Overview and detail views
See the entire recording in overview, or zoom and pan in detail view. Click inside the selected waveform to seek; hover to check the time before clicking.
Loop preview and fades
Loop the selection to check your cut points. Set fade-in and fade-out durations for smoother starts and endings; both preview and export include the fades.
Independent volume, speed and pitch
Set volume from 0–200%, speed from 0.5–2× and pitch within ±12 semitones. Speed changes preserve pitch, and pitch changes preserve speed. The waveform updates with the processed result.
Export in seven formats
MP3 is the default, with WAV, M4A, AAC, M4R, FLAC and OGG also available. Bitrate controls appear for formats that support them. Only your current selection is exported.
Local processing and reversible edits
Audio content is processed in your browser without uploading it to a server. Undo, redo or reset your edits, then close the audio to open another file. The editor adapts to phones and computers.
How to cut a section from the middle of an audio file
Open an audio file or drop it into the timeline. Once loaded, the file area becomes a waveform with time markers.
Drag the handles to select a clip. For a clip from second 30 to second 60, open Precise selection and enter 30 as the start and 60 as the end: a 30-second selection.
Click within the selected waveform to seek, then play or loop the clip. Add fades or adjust volume, speed and pitch as needed. Recheck the selection and duration after changing speed.
Choose Export audio at the top right, pick a format and an available bitrate, then export the selection. The downloaded file includes your adjustments; the original stays unchanged.
Audio trimming questions
Can I keep only the middle of an audio file?
Yes. Set the start and end times to preview and export only that interval. The dimmed regions on either side are excluded. Use it for podcast excerpts, interview quotes, voice clips or a section of a song.
Which import and export formats are supported?
Common imports include MP3, WAV, M4A, AAC, FLAC and OGG; decoding depends on your browser's support for the file's codec. Exports include MP3, WAV, M4A, AAC, M4R, FLAC and OGG. If a file cannot be decoded, convert it to WAV and try again.
Should I export as MP3, WAV or FLAC?
MP3 balances compatibility and file size; M4A, AAC and OGG are other compressed options. WAV stores uncompressed PCM and FLAC uses lossless compression to preserve the processed result. Neither restores information already lost in the source. M4R can prepare compatible ringtone files; adding them to a device follows the device's own workflow.
Is my audio uploaded or my original file changed?
Audio decoding, editing and export happen in the current browser. Audio content does not need to be uploaded to a server. Edits do not overwrite your local original; export creates a new audio file.
Do preview and export include my adjustments?
Yes. The current selection, fades, volume, speed and pitch apply to both preview and export. A status message appears while speed or pitch is processing, and the waveform updates when ready. Listen to the result before exporting.
Does Smart mean AI text-based audio editing is available?
The current tool provides waveform-assisted manual trimming, precise time selection and audio effects. Speech recognition for sentence or text-based cuts, silence detection, automatic splitting and batch export are not available yet.
Can I use a phone, and can I undo mistakes?
The layout adapts to phones and supports touch dragging of the handles. Undo, redo or reset edits; closing or replacing audio asks for confirmation. Long recordings and complex processing depend on device memory and browser performance. Try a shorter file or a computer if needed.