Audio Cutter — Trim MP3 Online
Pick the part you want on the waveform, preview it, and save as MP3 or WAV. Great for ringtones.
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Cut exactly the seconds you need from a long track, for a ringtone or a clip
Sometimes you only want a song’s chorus, the question part of a lecture, or a podcast’s intro. This tool draws the file’s waveform, lets you set a range with two handles or by typing seconds, plays the selection back, and saves it as MP3 or WAV. Your music is handled inside the browser and never uploaded.
A closer look
When you load a file, the browser decompresses the entire track into memory and draws its waveform. The part shaded purple is what will be saved; clicking or dragging on the waveform moves whichever handle is closer to that spot. The Start and End boxes show the range to a tenth of a second, and editing them moves the handles too. Decompressed audio is far larger than the file itself: an hour of stereo audio that takes a few dozen megabytes as MP3 needs more than 1 GB of memory once decoded, so very long recordings are better opened on a computer than on a phone.
The selection is written out as a brand-new file. WAV (lossless) stores the decoded samples as 16-bit audio with no further loss, but stereo runs about 10 to 11 MB per minute. MP3 is re-encoded at 192 kbps, about 1.4 MB per minute; if the source was already an MP3, that is a second round of compression, which can add a slight loss. Up to two channels are kept, and tags such as title, artist and album art are not copied to the new file.
How to use it
- Drag in an audio file or press Choose file. A line such as “Loaded: 3:45 · 8.6 MB” appears along with the waveform.
- Drag the purple handles to set the start and end. For an exact point such as 1 minute 12.5 seconds, type 72.5 into Start (s). The length appears next to the boxes, for example “Selection: 30.0s”.
- Press Preview selection to listen; a line tracks the playback position and the button turns into Stop. Turning on Fade in (0.5s) or Fade out (0.5s) changes the preview right away.
- Choose MP3 or WAV under Save as, press Cut, check the result in the player below, and press Save. The file is named after the original with “_cut” added.
When it helps
Common snags
Tip To pull several clips from one file, there is no need to load it again: move the handles, press Cut and Save, and repeat. Every clip gets the same file name, so rename each one as soon as it downloads.
FAQ
Can I make a ringtone?
Yes. Cut your favorite 30–40 seconds and save as MP3 — on Android you can set it as a ringtone directly. iPhones use their own format (M4R), so you'll need an app like GarageBand to register it.
Does cutting reduce quality?
Saving as WAV is lossless. Saving as MP3 re-encodes at 192 kbps, which is hard to tell apart for everyday listening.
What files are supported?
MP3, WAV, M4A, OGG, FLAC — anything your browser can decode. Set start/end by dragging the waveform handles or typing seconds.
What do fade in/out do?
They stop the cut from sounding abrupt: the first 0.5s ramps up (fade in) and the last 0.5s ramps down (fade out). The preview reflects them too.
Is my file uploaded?
No. Cutting and encoding run entirely in your browser — your music is never uploaded anywhere. Free, no limits.