Free Online Audio Cutter
Trim start and end points of any audio file with live playback preview. Extract sound bites, ringtones, and podcast highlights with 100% private in-browser processing.
How do I cut an audio file online for free without uploading it to a server?
To trim an audio file privately, upload it to BrowserConvert's Audio Cutter tool below. Set your desired start and end points using the interactive range sliders or type exact timestamps, preview the selection using the built-in player, and click Cut & Save. The file is trimmed locally using browser-native WebAssembly FFmpeg with 100% confidentiality.
Select an audio file to cut
Supports MP3, WAV, M4A, FLAC, OGG, OPUS, AAC
How to Cut & Trim Audio Files
1. Upload Audio Track
Select any MP3, WAV, M4A, FLAC, or OGG file from your computer or smartphone.
2. Set Start & End Sliders
Use the range slider controls or input exact seconds to define your trimmed segment.
3. Cut & Download
Click “Cut & Save Selection” to process locally and download your trimmed clip.
Frequently Asked Questions About Audio Trimming
How does the Audio Cutter work without uploading my files?
BrowserConvert uses WebAssembly-compiled FFmpeg directly in your browser. When you select an audio track, the HTML5 Web Audio API parses the file for playback preview while FFmpeg slices the exact start and end timestamps in memory.
Can I cut audio on iPhone, Android, or mobile devices?
Yes. The Audio Cutter is fully responsive and supports touch range sliders and numerical inputs on iOS Safari and Android Chrome.
What audio formats can I trim?
You can trim any MP3, WAV, M4A, FLAC, OGG, or AAC file. The output is cleanly exported as a lossless-cut audio track.