Reduce JPG, PNG and WebP file sizes instantly in your browser. Live before/after preview, quality control, and WebP conversion — all without uploading your images anywhere.
Drag and drop or click to select a JPG, PNG or WebP image from your device.
Pick Quick mode (Maximum, Balanced, Ultra Small) or use the Advanced slider for precise control.
See exactly how much you saved before downloading. Export as JPG, WebP or PNG.
See file size savings before you download. Live estimate updates as you adjust quality.
Convert to WebP format for an additional 25–35% size reduction over JPEG.
Drag the slider to visually compare original and compressed quality side by side.
Optionally downscale large images by setting a maximum width in pixels.
Everything runs in your browser. No file ever touches a server.
Install as a PWA and compress images anywhere without an internet connection.
| Feature | MultiMian ImageKit | Typical Online Tool |
|---|---|---|
| Image uploaded to server | ✓ Never | ✗ Usually yes |
| Registration required | ✓ None | ✗ Often required |
| Watermark on output | ✓ Never | ✗ Sometimes |
| Works offline | ✓ PWA support | ✗ No |
| File size limit | ✓ None | ✗ Usually 5–20MB |
| Open source | ✓ MIT License | Varies |
| Cost | ✓ Free forever | Free with limits |
No upload. No registration. No watermarks. Start instantly — it's completely free.