Dedicated MP3 Song Cropper & Audio Trimmer

MP3 Cutter Online — Fast, Free & Private

Select a section of an uploaded audio file, add optional fades, and download the result as a WAV file. Processing happens in your browser.

100% Client-Side • No Server Uploads • Zero Storage

100% Offline

Select or Drop Audio File

Drag and drop a compatible MP3, WAV, AAC, M4A or OGG audio file here

Browse Audio File

Common formats: MP3, WAV, AAC, M4A and OGG. Codec support varies by browser (max 100MB).

Why Use mp3cut.in for Online MP3 Cutting?

No Upload Delay: Audio files are decoded locally in your browser memory via Web Audio API.

Clear time controls: Drag the start and end markers or type the times you need.

Fade Effects: Add 2-second fade-in and fade-out transitions for smooth playback.

Mobile Ready: Fully responsive on Android Chrome, iOS Safari, and tablet browsers.

How Precision MP3 Trimming Works

When you load a compatible audio file, the browser decodes it and displays a waveform that helps you select a section. This is useful for making a short clip, removing an unwanted introduction, or isolating a section for review. The output is a newly encoded 16-bit PCM WAV file, so its format and size can differ from the source file.

Start and end markers with editable time values
Smooth 2-second linear fade-in and fade-out curves
Optional gain adjustment with care for clipping at high settings

Online MP3 Cutter vs Desktop Software

Featuremp3cut.in vs Desktop

InstallationZero (Runs in Browser)

File Privacy100% On-Device Memory

Mobile Phone SupportFull Chrome & Safari Support

Processing SpeedDepends on file length and device

Choose a separate tool when your editing task needs more than trimming or format-compatible WAV output.

Frequently Asked Questions (FAQ)

MP3 Cutter FAQs

Common questions about trimming MP3 songs online for free.

Simply select or drop your MP3 file into the waveform editor, drag the blue handles to mark your start and end positions, and click the Download button to save your trimmed track.

Yes, 100%! All cutting and rendering takes place locally inside your browser memory using Web Audio API. Your audio files are never uploaded to any server.

Yes! Toggle the Fade In and Fade Out options to apply a smooth 2-second volume transition at the start and end of your cut audio track.

mp3cut.in supports MP3, WAV, M4A, AAC, FLAC, and OGG audio formats directly on desktop and mobile browsers.