About BrowserConvert
BrowserConvert is a free, modern web utility built to simplify audio format conversion and video-to-audio extraction while protecting user confidentiality.
What is BrowserConvert and how does it protect user privacy?
BrowserConvert is a free online audio converter that runs WebAssembly-compiled FFmpeg locally inside your browser sandbox. Unlike traditional converters that upload private audio and video recordings to cloud servers, BrowserConvert executes all decoding, trimming, and re-encoding on your device CPU. 0 bytes of media content are ever transferred to our servers.
Why We Built BrowserConvert
For years, converting an audio file or extracting sound from a video required either installing bloated, adware-laden desktop software or uploading sensitive recordings to obscure cloud servers. Cloud-based converters present serious privacy risks: your personal voice notes, corporate interviews, unreleased music, and private family videos are uploaded over the internet, stored on third-party disks, and processed in unpredictable server environments.
We built BrowserConvert with a simple conviction: your media files should never leave your computer or phone.
The Technology Behind Local Processing
WebAssembly (Wasm) Engine
We compile the industry-standard FFmpeg multimedia framework into WebAssembly binaries that execute natively in your browser with near-native CPU speeds.
Zero Server Uploads
When you select a 500 MB video or audio file, zero bytes of media content are sent over the network. All demuxing, decoding, and re-encoding occurs inside your browser's isolated sandbox.
Our Core Principles
- No Registration: We will never ask for your email address, passwords, or credit card details to convert audio files.
- No Deceptive Dark Patterns: We do not place misleading download buttons, fake antivirus alerts, or forced pop-ups.
- Ethical Utility: We focus strictly on converting user-owned files. We do not support downloading protected streaming media or circumventing platform rights.