What Is an Audio Cutter?
An audio cutter is a tool that lets you select and extract a specific segment from an audio file — trimming the start and end to isolate exactly the portion you need. Online audio cutters like this one run entirely in your browser using the Web Audio API, meaning your files never leave your device and no software installation is required.
Audio cutters are used by musicians to isolate loops and samples, podcasters to trim intros and outros, content creators to extract clips for social media, and everyday users who want to create custom ringtones from their favorite songs. With a waveform visualizer, you can see exactly where you're trimming, making precise edits effortless.
How to Create a Ringtone
Upload your audio file
Drag and drop or click to upload an MP3, WAV, M4A, OGG, or even an MP4 video file. The audio is decoded directly in your browser.
Select your clip using the waveform
Drag the cyan and red handles on the waveform to define your start and end points, or type exact times in the input fields. Use the preset buttons for common ringtone lengths (15s, 30s, etc.).
Preview your selection
Click Play to hear only the selected section. Adjust the handles until it sounds exactly right. The yellow playhead shows your current position.
Add effects (optional)
Enable Fade In to smoothly start your ringtone, Fade Out for a clean ending, and Volume Boost if the audio is too quiet.
Download your ringtone
Select your output format and click Download. For Android, use MP3. For iPhone, download as M4A and rename the file extension to .m4r before importing to iTunes.
Supported Audio & Video Formats
Input Formats
MP3
Most common
WAV
Lossless
OGG
Open source
M4A
Apple audio
AAC
Advanced audio
FLAC
Lossless
MP4
Video + audio
MOV
Apple video
WEBM
Web video
Output Formats
Lossless PCM. Largest file size but perfect quality. Best for further editing.
Most compatible. Works on Android, Windows, Mac, and most music players.
Open-source codec. Great quality at small file sizes. Best for Android apps.
MPEG-4 audio. Rename to .m4r for iPhone ringtones. Required for iOS.
Frequently Asked Questions
Note on format support: Browser audio codec support varies. WAV and OGG are natively supported in all modern browsers. MP3 support is available in Chrome, Firefox, Safari, and Edge. For best compatibility, use WAV for lossless output and rename if needed for your target device. This tool exports using the Web Audio API's native PCM encoder (WAV) which is 100% lossless and works universally.