Audio Trimmer & Cutter
Cut, slice, and trim MP3, WAV, AAC, and M4A audio files in your browser. Visual waveform display, exact millisecond cue handles, and instant WAV download with zero server uploads.
✓ 100% Free
⚡ Web Audio API
🎚️ Waveform Visualizer
🔒 100% In-Browser Privacy
Drop an audio track here or Click to Browse
Supports MP3, WAV, M4A, AAC, and OGG audio files.
🔒 Zero Cloud Upload: Audio data is decoded into PCM samples inside your device memory using Web Audio API.
track.mp3
Channels: Stereo • Sample Rate: 44.1 kHz • Total Duration: 0:00
Visual Waveform (PCM Peaks)
0:00.0 / 0:00.0
✂️ Trim Points (Seconds)
Trimmed Segment Duration: 10.0s
🎧 Preview & Export
How Audio Trimming Works
- Select Audio Track: Select any MP3, WAV, AAC, or M4A file from your phone or desktop.
- Waveform Analysis: The browser's native AudioContext decodes the compressed sound into raw pulse-code modulation (PCM) floats.
- Set Trim Points: Adjust start and end timestamps down to exact milliseconds.
- Export Clean WAV: An uncompressed 16-bit PCM RIFF WAV header is assembled in memory and downloaded instantly.
100% In-Browser Audio Security
Audio files often include private voice notes, unreleased podcasts, or confidential business calls. AG World Tools never sends your audio to any remote cloud.
- Zero Cloud Telemetry: All playback and sample slicing happens locally in RAM.
- Lossless Slicing: No audio compression artifacts or quality degradation.
- Unlimited Free Use: Trim as many audio clips as you need with no subscription gates.