Audio Tools New Tool

Free Online Audio Cutter and Trimmer

Cut and trim audio free without uploading anything. Mark a piece and keep it, or mark it and take it out of the middle. The cut lands on the exact sample you chose rather than the nearest compressed frame, and a short ramp at each join removes the click.

Free Forever Nothing Uploaded Exact Sample Cuts No Click At The Join

Advertisement Slot (Top Banner) Google AdSense Unit • Responsive Banner

Drop an audio file here to cut it Keep the part you want, or take a piece out of the middle. MP3, WAV, M4A, OGG, FLAC and more. Select an Audio File MP3, WAV, M4A, OGG, FLAC and more • best under 25 minutes • nothing is uploaded

Drop a file in and its shape appears here. The pieces you mark are shaded on it.

0:00.000 / 0:00

What happens to the pieces you mark

The pieces

Times can be seconds (83.5) or minutes and seconds (1:23.5). The two small buttons on each row take the time from wherever the player is sitting, which is almost always quicker than typing it.

The joins

Soften every cut

What comes out

Output

Format

Bitrate

Sample rate

Channels

WAV detail Only used when the output is WAV. The compressed formats have their own.

Encoder

File name

.mp3

Buy Us A Coffee

Enjoying WizTools123? Help keep our server infrastructure 100% free and open for everyone.

Buy Us A Coffee

Sponsored Content (Below Tool) Google AdSense Placement

How to Cut an Audio File

Mark the piece, say whether to keep it or drop it, download.

Open your file Drop it on the box or pick it from your disk. The shape of the sound is drawn as soon as it is open, and clicking anywhere on that shape moves the player to that moment.

Mark the piece Play until you reach the start, press the small start button on the row, then do the same at the end. You can type the times instead, and you can add as many pieces as you need.

Say whether to keep them or drop them Keeping is trimming: everything outside your marks goes. Removing is the opposite: the marks come out and the rest is joined back together.

Choose a format and run it MP3 for something to send, WAV if it is going into an edit. WAV is written by this page itself, so choosing it downloads nothing at all.

What Cutting Audio Actually Does

Including the things this tool deliberately does not do.

The cut lands on the exact sample you asked for. A lot of tools cut on a compressed frame boundary instead, which in an MP3 is about twenty six milliseconds wide, so your mark moves. Here the sound is opened into individual samples first, and the cut is made on the one you chose.

A cut made at exactly the wrong moment clicks. Sound is a wave, and stopping one part way through leaves a step that you hear as a tick. The ten millisecond softening is on by default because it removes that without being audible itself. Turn it off if you need the samples untouched for measuring.

Cutting an MP3 and saving an MP3 costs a little quality. The file is decoded and encoded again, which is a second round of throwing detail away. At 192 kbps and above you are very unlikely to hear it. If the piece is going into an edit, take WAV or FLAC out of here instead.

Pieces come out in the order they sit in the file. Typing them in a different order will not reorder the result; a cutter is not an arranger. If you want the pieces rearranged, take them as separate files and put them back together with the merger.

The work happens on your own machine. Your file is opened by this page, not sent anywhere. That is why there is no upload bar, no queue and no waiting for a server. It is also why a long recording leans on your own memory: nothing is being done for you somewhere else.

Most of what this page does needs no download at all. Your browser already has a full audio engine in it, and that is what does the work. A thirty megabyte encoder is only fetched if you ask for MP3, M4A, OGG or FLAC at the end. Ask for WAV and nothing is downloaded, ever.

Length matters more than file size here. A browser opens sound at full detail, which works out at about twenty one megabytes of memory for every minute of stereo. A three minute song is nothing. A two hour recording is a different matter, and this page tells you where you stand the moment you pick a file.

Leave the tab open. All of the work is in this page, so closing it or navigating away stops the job halfway. On a phone, switching apps can do the same thing, because the system is allowed to pause a background tab.

Key Features & Capabilities

What this tool does, and what it deliberately does not.

Nothing uploaded Your file is opened by the page and worked on by your own processor. It is never sent anywhere.

Cuts on the exact sample The sound is decoded first, so the cut is made where you put it rather than at the nearest compressed frame.

As many pieces as you like Mark one piece or ten. They can be joined into one file or come out separately, numbered in order.

No click at the joins Each cut gets a ten millisecond ramp, which is short enough to be inaudible and long enough to stop the tick.

WAV downloads nothing WAV is written by this page. The thirty megabyte encoder is only fetched if you ask for MP3, M4A, OGG or FLAC.

Opens what you have MP3, WAV, M4A, AAC, OGG, Opus, FLAC, AIFF, and the sound out of an MP4 or a WebM.

About the Audio Cutter

Cutting audio is the most common thing anyone wants to do with a sound file, and it is also the thing that most often ends up on a stranger's server for no reason. Trimming two seconds of silence off the front of a voice note is a few thousand arithmetic operations. There is no good argument for uploading the voice note to have them done.

This page does it the direct way. Your browser already contains a complete audio engine, so the file is decoded into plain samples in the page, the piece you marked is copied out of them, and the result is written back into a file. Because the sound is in samples by that point, the cut lands exactly where you put it. Tools that cut a compressed file without decoding it can only cut at a frame boundary, which in an MP3 is about twenty six milliseconds wide, and that is enough to leave a syllable hanging.

Trimming and cutting the middle out are the same operation with the answer reversed, which is why they are one page here rather than two. Mark the piece, then say whether that piece is the part you are keeping or the part you are throwing away. Several pieces can be marked at once, and they can come out joined together or as separate numbered files, which is the quick way to pull half a dozen quotes out of a long interview.

The small softening setting is worth understanding rather than ignoring. Sound is a continuous wave, and cutting one at an arbitrary moment leaves a step in it that you hear as a click. Ten milliseconds of ramp at each cut removes that step and is far too short to be heard as a fade. It is on by default, and can be turned off for the rare case where the exact original samples matter more than the click.

Whether anything is downloaded depends on the format you ask for at the end. WAV is written by this page itself, so a WAV job fetches nothing at all. MP3, M4A, OGG and FLAC need a real encoder, and that is a thirty megabyte download the first time you want one, kept by your browser afterwards.

Frequently Asked Questions

Trimming, cutting the middle out, joins and formats.

Drop it on this page. It is opened by your browser, the piece you mark is cut on your own machine, and the result is saved by your browser. Nothing is sent anywhere, which you can check by turning your wifi off after the page has loaded.

Mark the piece you do not want and switch the first choice to "Remove them". What is left on either side is joined back together into one file.

Slightly, if you cut an MP3 and save an MP3, because the file has to be decoded and encoded again. At 192 kbps and above it is very hard to hear. Saving as WAV or FLAC instead loses nothing at all.

Because sound is a wave, and cutting one part way through leaves a sudden step. The softening setting adds a ten millisecond ramp at each cut, which removes it. It is on by default, so if you are hearing a click, check that it has not been turned off.

Yes. Add as many rows as you need. They can come out joined into one file, or as separate numbered files, which is useful for pulling several quotes out of one interview.

It depends on your machine, because the sound has to be held in memory at full detail: about twenty one megabytes for every minute of stereo. A song is nothing. An hour long recording is close to the limit on a laptop and will usually fail on a phone. The page tells you as soon as you pick the file.