TinyPNG Alternative — No Upload
TinyPNG compresses images well but uploads everything to their servers. Swiss Knife compresses JPEG, PNG, WebP, and AVIF entirely in your browser — with quality control, resize, crop, and more. No upload, no account, no monthly limits.
Compress Images NowNo UploadFiles stay on your device
No SignupNo account required
Runs in BrowserWorks offline too
Free ForeverNo limits, no watermarks
What you get
- ✓Compress JPEG, PNG, WebP, and AVIF
- ✓Adjustable quality slider with preview
- ✓Resize, crop, rotate in the same tool
- ✓Files never leave your browser
- ✓No monthly compression limits
- ✓No account needed
Why switch from TinyPNG?
TinyPNGFree Tooling
✗Uploads images to servers
✓Images never leave your browser
✗500 free compressions/month
✓Unlimited compressions
✗Compression only
✓Compress + resize + crop + filters
✗Pro plan $39/year
✓Free forever
✗PNG and JPEG only
✓JPEG, PNG, WebP, AVIF
Frequently asked questions
Is the compression quality as good as TinyPNG?
We use browser-native compression algorithms. For most use cases the results are comparable. The advantage is your images never leave your device.
Free · No account · No upload · Works offline