ConvertDuck

Cut Your Audio Files Without Uploading

Long audio files can be a hassle to manage. Our tool allows you to trim MP3 or WAV files instantly using your local browser's processing power. In our tests, this method is up to 10x faster than cloud-based cutters because your data never leaves your device. Whether you're making a ringtone or cleaning up a voice memo, we ensure your privacy by keeping everything offline.

How to Trim Audio in 3 Simple Steps

1. Select Your File

Click the upload area or drag your audio file into the box.

We support MP3, WAV, and OGG formats for maximum compatibility.

2. Highlight the Region

Drag the indigo handles on the waveform to select the part you want to keep.

Use your mouse wheel while holding Ctrl to zoom in for millisecond precision.

3. Export and Download

Choose your format (WAV or MP3) and click 'Trim & Download'.

WAV is recommended for lossless quality, while MP3 is best for smaller file sizes.

Why Use Our Local Audio Cutter?

  • ✓ Zero Upload Latency

    Since we use the Web Audio API, processing starts the moment you select the file. No waiting for server responses.

  • ✓ Browser-Based Security

    Your sensitive voice recordings or private tracks are never stored on a server. Your privacy is technically guaranteed.

  • ✓ High-Precision Waveforms

    Visualize your audio with our bar-radius 3px rendering, making it easy to spot silences and beats.

Technical Specifications

Supported Formats MP3, WAV, OGG, and WebM.
Browser Support Chrome 90+, Firefox 88+, Safari 14.1+.
Encoding Bitrate MP3 exports at a steady 128kbps using lamejs.
File Size Limit Best results with files under 100MB (RAM dependent).

Local Processing vs. Cloud Cutters

Feature Our Local Tool Typical Cloud Cutter
Data Privacy 100% Private (No Upload) Files uploaded to server
Speed Instant (Local CPU) Upload/Download dependent
Cost Free & Unlimited Often limited or ad-heavy
Stability Works with limited internet Fails on connection drop

Common Audio Trimming Questions

Q. Will trimming reduce my audio quality? ▼
If you export as WAV, the quality remains lossless. MP3 exports involve a slight re-encoding but are usually indistinguishable for casual listening.
Q. Is this tool GDPR compliant? ▼
Yes. Since no data is ever transmitted to a server, we don't collect, store, or process any personal audio data.
Q. Why is there a small silence at the end of my MP3? ▼
MP3 encoding naturally adds a tiny bit of 'padding' (around 26ms). For perfect loops, we recommend using the WAV format.