FileSlim is a free, browser-only compressor for images, PDFs, Office documents, SVG, and audio.
Drop a file in. Compression runs on your device with WebAssembly. Nothing is uploaded to FileSlim. No account, no API key.
Also included: batch compression, local PDF tools, and an MIT JavaScript SDK (npm install @fileslim/compress).
Built so private school and work documents do not have to pass through an unknown upload server.
