Audio Cutter

How Audio Cutter works

Type where the part you want starts and ends, in seconds or minutes and seconds, and the tool saves just that section in the same format as the original. Leave the end blank to keep everything after the start.

Cuts are exact to the moment you type, because the kept section is re-encoded: MP3, M4A, AAC and OGG at 192 kbps, which is transparent for most listeners, and WAV and FLAC losslessly. Other formats are saved as MP3.

Everything runs in this tab with ffmpeg compiled to WebAssembly. The engine downloads once, about 32 MB, and is cached by your browser; your recordings stay on your device.

The clip is named after the original with -cut added, so the original recording is never overwritten. Times can include fractions of a second, such as 12.5, for precise edits. To find the right times, play the file in any media player and note where the part you want starts and stops; most players show the position to the second. Cutting works the same way on phones, which makes it handy for trimming a voice memo before sending it. Nothing is uploaded, so interviews, lectures and private recordings stay on your device. Stereo and mono files stay as they were, and the sample rate is normally kept, so the clip matches the rest of your project.

Audio Cutter options explained

When to use it

Audio cutting covers ringtones and notification sounds, a quote from an interview or lecture, a sample for a music project, trimming silence off a voice memo, or a short clip to post on social media.

For an iPhone ringtone, cut up to 40 seconds and then convert the clip with MP3 to M4R. For a clean start, begin the cut a fraction of a second before the first word or beat.

About the audio cutter

The audio cutter uses ffmpeg compiled to WebAssembly, the same engine as the audio converter on this site. It reads MP3, WAV, M4A, AAC, OGG, FLAC, Opus and most other formats, and keeps the original format for the clip wherever it can. The engine downloads once, about 32 MB, and is cached. If you want the clip in a different format, cut it here first and then use the matching converter, such as WAV to MP3 or MP3 to M4R for an iPhone ringtone. Tags such as title and artist are carried over when the format can store them.

Audio Cutter troubleshooting

"is not a time"

Use seconds or minutes and seconds with a colon, such as 45 or 0:45. Decimals work for fine cuts, such as 12.5.

The end must be after the start

Check the two times, or leave the end empty to keep the rest of the file.

The format changed to MP3

Formats other than MP3, WAV, M4A, AAC, OGG, FLAC and Opus are saved as MP3, which plays everywhere.

How to use Audio Cutter, step by step

1. Press "Choose an audio file" or drag files onto the box.
2. Set the options if you need to; the defaults suit most uses.
3. Press "Cut audio". The work happens on your device.
4. Save the result with its download button.

Is it safe to do this online?

With most online tools, "online" means your file is uploaded to a company's server, processed there and kept for a while before it is deleted. Here it is not. The page downloads the tool's code to your browser, and your file is read and processed inside the tab on your own device. It is never sent to TapToConvert or anyone else.

You can check this yourself: once the page and its engine have loaded, turn off Wi-Fi and the tool still works. That also means there is no queue, no daily limit and no file size cap set by a server; the only limit is the memory your browser gives a single tab.