Audio Trimmer & Converter
Free online audio trimmer and converter. Waveform selection, fade in/out, volume adjustment; export MP3/AAC/WAV/OGG/FLAC locally in your browser.
💡 All processing happens locally in your browser. No uploads.
💡 Supports MP3/WAV/M4A/FLAC audio and MP4/MOV video (audio track extracted automatically)
💡 The first export loads a ~30MB FFmpeg engine; the browser caches it afterwards
FAQ
Can I extract audio from a video?
Yes. Upload an MP4/MOV video and the tool extracts the audio track automatically, then trim it with the waveform selection and export as MP3/AAC/WAV/OGG/FLAC.
How do I cut the best part of a song?
Upload the file, drag on the waveform to select a range, preview it, then export. You can also type exact times (e.g. 1:20 to 1:45) in the range inputs.
Does it support fade in and fade out?
Yes. Enter fade durations in seconds and they are applied on export — great for smoothing the start and end of ringtones.
Are my audio files uploaded to a server?
No. Waveform analysis, preview and export all run locally in your browser (Web Audio + FFmpeg WASM). Files never leave your device.