Compress files without uploading them.
100% browser-based compression. No cloud uploads, no servers, no risk for your data. Securely compress your PDF, Word, and Excel files instantly.
SlimDoc is a free and premium online file compression tool that processes files entirely in the user’s browser. Supporting PDFs, images, and Office documents, it puts privacy first — files never leave the device — delivering a fast, secure alternative to server-based compression.
