About Video to Audio
A focused, independently maintained browser tool for extracting useful audio from video without handing private files to a conversion server.
Publisher and authorship
Video to Audio is an independent software project. Its guides are written and maintained by this site's developer under the Video to Audio byline, which identifies the person accountable for the product and its technical guidance. No unrelated professional credential is implied. The support address accepts corrections, privacy questions, and reproducible format reports.
How it is built
FFmpeg runs as WebAssembly inside a worker. Large inputs are mounted through WORKERFS when available. Single-thread mode is the compatibility baseline; isolated browsers can try the multi-thread core and automatically fall back if it cannot load.
How we verify claims
Automated checks cover command construction, format limits, output estimates, runtime fallback, security headers, routes, and static builds. Browser releases still require sample conversions on supported desktop and mobile browsers; unsupported codec combinations are documented rather than generalized.
Primary sources and corrections
Technical guidance is reviewed against FFmpeg, ffmpeg.wasm, Matroska, MDN, and reproducible converter behavior. Guides link to relevant primary sources. Submit corrections through the Contact page without sending private media.
Current scope
Version one handles one local video up to 300 MB, exports MP3, WAV, M4A, or an original stream-copy MKA, estimates risky output sizes, and supports simple start/end trimming.