No. Everything happens in your browser: the file stays on your device until you download it.
Optimize images for the web
Upload a photo, choose width and quality, and download a lighter file. Processing happens in your browser: no server upload and the same output format.
Free · local processing · 0 tries without an account · up to 0 per day when signed in
- JPG, PNG, WebP
- Up to 1920 px
- Same format
- Full privacy
Only need to change format? Convert format · Domain SEO analysis · SEO snippet preview
Frequently asked questions
For hero and banner images use 1920 px, for sections and cards 800–1280 px, for thumbnails 400 px. Aspect ratio stays the same as the original.
No: JPG stays JPG, PNG stays PNG, WebP stays WebP. To convert between formats use Convert format.
Without an account you get 0 trial optimizations. With a free account, up to 0 images per day.