Edit Audio Locally.
100% Private.
Convert video to audio and trim tracks instantly in your browser. No file uploads. No server waiting time. The fastest way to extract audio from MP4 and use an MP3 cutter online that stays on your device.
Why is it Secure?
Everything runs locally in your browser. Your sensitive recordings never leave your device.
The Ultimate Tool for Creators
FAQ
How to extract audio from video (MP4) without uploading?
Use the Video → Audio Converter. It runs locally in your browser, so it’s a secure no-upload way to extract audio from MP4 and download MP3/AAC/WAV.
Is it safe to convert confidential audio files here?
Yes: this is a browser-based, local tool. Your files are processed on your device and never sent to a server, which is why it’s a private audio editing tool.
What is the best free online MP3 cutter?
If you want an MP3 cutter online with waveform preview and no uploads, use the Audio Cutter. Select a range on the waveform and download instantly.
Does this work on iPhone / iPad?
It can work on modern mobile browsers, but performance depends on device memory/CPU. For large videos, desktop browsers are usually faster.