About To MP3 Converter
Free, fast, and private audio conversion - entirely in your browser.
Our Mission
To MP3 Converter was built to give everyone a simple, trustworthy way to convert audio and video files they own or have permission to use into MP3. Whether you need to extract audio from a personal recording, shrink a large WAV file, or make an obscure format playable on your phone, our tool handles it in seconds - with no software to install and no account required.
Unlike most online converters, we never upload your files to a server. Every conversion runs locally on your device using WebAssembly and FFmpeg, so your content stays private from start to finish.
What We Stand For
Privacy First
Your files never leave your device. We have no access to what you convert, and we do not store any media on our servers.
Modern Technology
We use FFmpeg compiled to WebAssembly for near-native conversion speed directly in the browser - no plugins or desktop apps needed.
Universal Access
Our tool works on desktop and mobile browsers and supports 30+ input formats.
Free for Everyone
No subscriptions, no daily limits, and no watermarks. We believe essential media tools should be accessible to all.
How It Works
When you select a file, our converter loads a compact FFmpeg engine into your browser tab. The engine decodes your input file, encodes it as MP3 using the LAME codec, and triggers a download - all without sending data over the network.
This client-side approach means conversion speed depends on your device, but it also means your files are never exposed to third-party servers. It is the same technology trusted by developers worldwide, adapted for everyday users.
Support the Project
This tool is free and always will be. If it saved you time, consider buying us a coffee.