You don't need Photoshop or a paid app to compress images on Windows. Between built-in tools, free Microsoft utilities, and browser-based compressors, you have at least six solid options — most of them already on your PC.
Yes, Paint still exists, and it can compress images in a pinch:
Limitations: No quality slider, no batch processing, no WebP/AVIF support. Single file only. Fine for a quick one-off, painful for anything more.
Windows 11's Photos app has a hidden resize feature:
Limitations: Resize only, no quality slider, no format conversion beyond JPG. Single file.
Microsoft PowerToys is a free utility pack from Microsoft itself. Its Image Resizer tool is the best batch solution available without installing anything third-party:
Pros: Batch processing, right-click integration, customizable presets (add your own sizes). Cons: Resize only, no quality-percentage control, no WebP/AVIF support, no compression without resizing.
Counterintuitive but effective: open a PNG in Snipping Tool, re-save it. The tool always saves as a compressed format, often yielding 50-70% smaller files.
Limitations: Very basic. No batch. No quality control.
A browser compressor like compress2png.com outperforms every built-in Windows option:
If you're comfortable with the command line, ImageMagick is the most powerful free option:
magick mogrify -quality 80% -resize 1920x *.jpg
This single command resizes all JPGs in the current folder to 1920px wide and compresses to 80% quality. Install via winget install ImageMagick.ImageMagick.
| Method | Batch | Quality Control | WebP/AVIF | Best For |
|---|---|---|---|---|
| Paint | ❌ | ❌ | ❌ | Emergency one-off |
| Photos App | ❌ | ⚠️ Resize | ❌ | Quick resize |
| PowerToys | ✅ | ⚠️ Size | ❌ | Batch resize |
| Browser Compressor | ✅ ZIP | ✅ Full | ✅ | Daily driver |
| Command Line | ✅ Script | ✅ Full | ✅ | Automation |
For one-off compression, use a browser tool like Compress2PNG — no install, works instantly. For batch desktop work, install PowerToys (free from Microsoft). For automation, ImageMagick on the command line. You never need to pay for image compression on Windows.