Audio cutter

Cut the section you actually need

Keep a region or close a gap

Mark a start and end point, then choose whether the export keeps that region or keeps everything except it. The second option removes an unwanted middle section and joins the surrounding audio. These are different edits, so audition the intended result before exporting. A cut cannot repair timing or disguise every change of room tone. For spoken audio, place edit points around a natural pause and preserve enough breath and ambience for the join to feel believable.

Edges you can hear and control

The waveform, typed times and keyboard nudges help position the selection. Snap to zero crossings can move an edge slightly to avoid a sudden waveform jump, while fade-in and fade-out controls soften entrances and endings. Neither option automatically finds a musical phrase or chooses the correct word boundary. Listen close to each edge, then listen in context. A technically smooth cut may still interrupt a syllable, remove a beat or shorten the pause that gives a sentence its meaning.

Lossless when the path supports it

WAV, AIFF and FLAC can preserve the untouched samples when exported with compatible source settings outside any fades. Eligible MP3 and AAC cuts can copy encoded frames when no fade requires rendering. MP3 frame copying also depends on suitable gapless information; otherwise the page can fall back to re-encoding and reports the actual path. The important distinction is between an edit that copies existing audio data and one that decodes, changes and encodes it again. Give each exported excerpt enough context for the person who will use it. A practice phrase may need a count-in, while a spoken quotation needs a boundary that preserves its meaning. These are editorial decisions the waveform cannot make for you. Listen once without staring at the display and check whether the beginning and ending feel intentional. Then inspect the numeric duration if a delivery has a strict limit. Both listening and timing matter; one does not substitute for the other.

Who trims audio in the browser

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  Podcasters removing a false start

  Select the unwanted sentence or pause and use the option that keeps everything around the selection. Listen across the new join, paying attention to a breath, the noise floor and the rhythm of the conversation. A tiny fade can solve a click, but it cannot make incompatible words flow naturally. Keep the full recording as a source and export a new working copy. Several complicated edits may be easier to manage in a dedicated multitrack editing session.

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  Musicians preparing practice excerpts

  Cut a short passage that includes the musical lead-in you need for practice. Keeping a bar before the difficult phrase makes the timing easier to follow than starting on an isolated note. Save the excerpt, then use the pitch changer if you need slower playback in the original key. This division keeps the editing decision clear: the cutter chooses the passage, while a separate tool changes tempo. Check that the end contains enough of the final note’s decay.

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  Editors making previews and samples

  A release preview, audition clip or short effect needs deliberate boundaries, not simply the first available seconds. Select a representative moment and include a sensible ending or fade. If you are extracting an excerpt from someone else’s work, an edit does not grant distribution rights. Choose a format accepted by the receiving application and check the downloaded duration. A ringtone or social platform may impose further length or container requirements outside this tool’s own editing controls.

How to select, audition and export a cut

1. 1

   Load the source and inspect its timeline

   Choose a supported file and let the page create its waveform. The source is read on your device, with a 2 GB file cap and practical decoded-memory limits. Long recordings may need more time to display. Play the section around the intended edit before marking the final selection. For a long session, zoom or move through the waveform to work at a useful scale rather than trying to place a precise boundary from a view of the whole recording.

2. 2

   Mark, choose and audition the operation

   Drag selection edges, type Start and End, or nudge an edge with the keyboard. The page provides fine and larger time steps, which are helpful when a waveform does not make a quiet entrance obvious. Choose keep-region or remove-region, then set fades only where they support the edit. Snap-to-zero can improve a boundary but slightly changes its position. Recheck the selected times when the cut must satisfy a strict editorial duration or begin at a specific musical moment.

3. 3

   Export and verify the saved copy

   Pick the target format and review whether the page describes the operation as lossless copying or rendered encoding. Export, download and play the saved file around both edges and any middle join. Confirm that the filename, duration and retained tags match the intended delivery. For repeated sections, the splitter and supported cue information can help organize a long source, but listen to representative boundaries. Keep the original full-length recording so a later change does not require reconstructing removed material.

Audio trimming and lossless-copy questions

Learn how

Guides and tutorials that use this tool, with real screens and real numbers.

• TutorialPitch changerSlow a song down without changing its pitchFour steps on the pitch changer: load the song, set the tempo, compare at matched level, export. Down to half speed, in the original key, in your browser.
• TutorialAudio cutterCut an audio file and export it without re-encodingFour steps on the audio cutter: load, mark the region, keep the source format with the fades at 0, export. Which files stay lossless, and which cannot.
• GuideAI masteringHow to master a track before releaseWhat mastering changes, how loud a song should be for streaming, and how to check your master the way Spotify, Apple Music and a phone speaker will play it.