About MiniFile

MiniFile is a free tool for compressing and converting images in bulk, built for anyone who has ever had to shrink dozens of photos before uploading them somewhere and gotten stuck doing it one file at a time.

Why it exists

Most online image compressors handle one file at a time, or require you to upload your photos to someone else's server to process them. Real work rarely looks like that. A real estate listing might need fifty drone photos resized and compressed before they'll fit a CMS's upload limit; a blog post might need a dozen screenshots converted to WebP. MiniFile was built to handle a whole batch at once, without uploading a single file anywhere.

How it's different

Every compression in MiniFile runs locally in your browser using WebAssembly builds of the same open-source encoders behind Google's Squoosh project (MozJPEG, OxiPNG, and modern WebP/AVIF encoders). Your images are decoded, resized, and re-encoded on your own device and never touch a server. That means no upload wait, no file size limit imposed by a backend, and no privacy trade-off for using a free tool.

Who built it

MiniFile is an independent project built and maintained by Donald Valdez. It's part of a small family of practical, no-nonsense web tools focused on doing one job well.

Get in touch

Bug reports, feature requests, or just feedback are welcome any time, see the contact page.