FileAlt
A privacy-first web app for converting images, audio, and video entirely in the browser. Users drop files, pick an output format, and download the result without sending file contents to a server.
Project Overview
FileAlt is a Next.js file-conversion site that runs compatible image, audio, and video conversions locally with FFmpeg WebAssembly. Files stay in browser memory, so there is no account, no upload pipeline, and no stored copies of source or output files. The converter supports drag-and-drop batches of up to five files (250 MB each), per-file output selection, progress, and downloads. Common paths include PNG/JPG/WEBP, MP4/MOV/WEBM, and WAV/FLAC/MP3, plus extracting audio from video. Format guides and an FAQ explain supported conversions, privacy, and device limits.