Optimize Your Images Instantly.

Compress, resize, and convert your images for free. Everything happens in your browser, so your files stay private.

Drag & Drop Your Files Here

Why Choose Tooldur?

Batch Processing

Optimize dozens of images at once. Drag, drop, and let our tool do the heavy lifting for you, saving you precious time.

100% Private & Secure

Your privacy is our priority. All processing happens in your browser. Your images are never uploaded to any server.

Completely Free

No subscriptions, no limits, no hidden fees. Tooldur is a free tool built for everyone, from students to professionals.

Frequently Asked Questions

How to reduce image file size without losing quality?

Our tool uses smart compression algorithms that significantly reduce file size while maintaining the best possible visual quality. For best results, use the 'Quality' slider to find the perfect balance for your needs.

What is the best image format for the web?

Generally, **WEBP** is the best modern format, offering great quality at a very small size. **JPG** is excellent for photographs, and **PNG** is best for images with transparency (like logos).

Are my images uploaded to a server?

No. All image processing happens directly within your web browser. Your files are never sent over the internet, ensuring your data remains 100% private and secure.

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