Image Compressor for Windows — Free, Fast & Private
Windows does not come with a built-in image compressor. Paint can resize images but has no compression controls. Photos app can edit but cannot reduce file sizes to specific targets. And the options on the internet are either bloated desktop software with .exe installers or online tools that upload your files to remote servers.
MiniPx is a browser-based compressor that works in Edge, Chrome, Firefox, or any modern browser on Windows. No .exe to download, no installer to run, no registry entries, no background processes. Open the URL, drag in your images, compress, download. That is the entire workflow.
Why not use desktop software?
Desktop compressors like Photoshop, GIMP, and IrfanView exist, but each has drawbacks. Photoshop is expensive. GIMP has a steep learning curve for a simple task. IrfanView is great for viewing but its batch compression is limited and does not support target-size compression or modern formats like AVIF and HEIC.
There is also a privacy concern with desktop software that people overlook. Some photo editing tools phone home — sending usage data, crash reports, or even image metadata to their servers. MiniPx runs entirely in your browser tab. It cannot phone home because there is no server component. Your images physically cannot leave your machine.
Full feature set on Windows
Compress JPEG, PNG, WebP, AVIF, and HEIC images. Convert between any supported format. Resize to specific dimensions. Compress to a target file size — 100KB for government forms, 50KB for exam applications, 1MB for email attachments. Batch process images 5 at a time on the free tier, or without a batch cap on Pro. Strip EXIF metadata. Convert PDFs to images and images to PDFs.
Works on any Windows version
MiniPx works on Windows 10, Windows 11, and even older versions as long as you have a modern browser. Edge comes pre-installed on every Windows machine, so you already have what you need. No compatibility issues, no system requirements beyond a browser.
Install as a desktop app (optional)
Want the app-like experience? In Edge or Chrome, open MiniPx and click "Install app" or "Add to desktop" from the browser menu. It installs as a PWA that launches in its own window, shows up in your taskbar, and works offline — all without a traditional .exe installer.