Web Image Optimizer

Resize and convert images to JPG, PNG, or WebP instantly.

1. Upload Image
2. Settings
Lower quality reduces file size (Not applicable to PNG).
3. Download
Preview
No image selected Image Preview

🚀 Boost Site Speed

Large images are the #1 cause of slow websites. Optimizing your images improves Core Web Vitals and makes your pages load instantly.

🔒 100% Private

This tool runs entirely in your browser. Your images are never uploaded to a server, ensuring maximum privacy and security.

📱 Mobile Friendly

Automatically resize standard 4K photos to web-friendly dimensions (like 1920px or 1080px) to save bandwidth for mobile users.

Which Format Should I Choose?

Format Best Used For Pros & Cons
WebP Modern Websites & Apps Best Choice Provides the smallest file size with high quality. Supported by all modern browsers.
JPG / JPEG Photographs & Realistic Images Great compression for complex colors. Does not support transparency (backgrounds).
PNG Logos, Icons & Screenshots Supports transparent backgrounds. File sizes are usually larger than WebP or JPG.

Frequently Asked Questions

For full-screen hero images, 1920px is standard. For blog post images, 1200px is usually sufficient. Using images larger than 2500px is rarely necessary for the web and hurts load times.

Yes, by design. "Lossy" compression removes data that the human eye can barely see to drastically reduce file size. You can control this using the Quality Slider above.