Compress images without losing quality
Shrink JPG, PNG and WebP files up to 80% smaller — instantly, in your browser. Nothing leaves your device.
How it works
1
Drop your image
Drag a JPG, PNG or WebP into the dropzone (or pick from your device).
2
Pick a quality
Slide between smaller file and higher quality. 80% is a great default.
3
Download
Hit compress and grab your file. Original stays untouched.
Why use Toolstack's Image Compressor?
100% private
Your file never leaves your device — everything runs locally in your browser.
Instant
No upload, no queue. The result is ready as soon as your laptop finishes the math.
Free forever
No signup, no credit card, no daily limits for the core features.
Open standards
We use proven open-source libraries — no proprietary lock-in, no shady tracking.