Upload image
Click to upload or drag and drop
PNG, JPG, WebP, GIF — any size
Why use our free image resizer & optimizer?
Resize images instantly
Resize any image to exact pixel dimensions with a live preview. Lock the aspect ratio to prevent stretching, or unlock it for custom crops. Quick presets for web, social media, and thumbnails.
Compress without losing quality
Reduce file sizes by up to 80% using smart compression. Adjust the quality slider to find the perfect balance between file size and visual quality for faster-loading web pages.
Convert between formats
Convert images between JPEG, PNG, and WebP formats. WebP images are up to 30% smaller than JPEG at the same quality — ideal for improving website performance and Core Web Vitals scores.
100% private & browser-based
Your images never leave your device. All resizing and compression happens directly in your browser — nothing is uploaded to a server. Your files stay completely private and secure.
Frequently asked questions
What image formats are supported?
You can upload PNG, JPEG, WebP, and GIF images. For output, choose between the original format, JPEG, PNG, or WebP. WebP typically offers the smallest file sizes for web use.
Is there a file size limit?
Since all processing happens in your browser, there's no upload limit. However, very large images (50MB+) may process slowly depending on your device's memory and processing power.
Why should I optimize images for my website?
Unoptimized images are the number one cause of slow websites. Large images hurt your Google search rankings, increase bounce rates, and frustrate visitors. Properly sized and compressed images make your site load faster and rank higher.
Are my images uploaded to a server?
No. This tool runs entirely in your browser. Your images are never uploaded, stored, or seen by anyone. When you close the page, the data is gone. Your privacy is fully protected.