How It Works
Understanding 100% local audio processing in your browser.
The TrustAudio Difference
Traditional Audio Tools
Your files pass through external servers
TrustAudio.eu
Your files never leave your device
The Technology Behind It
WebAssembly & AI
FFmpeg.wasm for audio conversion and Whisper AI for transcription run natively in your browser, enabling complex audio operations locally.
Built-in Browser Features
Modern browsers have built-in capabilities for audio playback, recording, and processing via Web Audio API - all without sending data anywhere.
Local AI Processing
Whisper AI models are downloaded once and cached locally. Transcription happens entirely in your browser - no audio is ever sent to any server.
Common Questions
Does it work offline?
Yes! Once the page and AI models are loaded, you can process audio without an internet connection. The tools run entirely in your browser.
Is there a file size limit?
The limit depends on your device's available memory, not our servers. Most modern devices can handle files up to several hundred MB.
How can I verify files are not uploaded?
Open your browser's Developer Tools (F12) and check the Network tab while processing a file. You'll see no file uploads to any server.
Which browsers are supported?
Chrome and Edge work best. Firefox is also supported. Safari has limited support for some features. We recommend keeping your browser updated.