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Lossless Image Compressor

Maximum Quality, Minimum Size

Drag & Drop or Click to Upload

Supports JPG, PNG, WEBP, HEIC • Up to 25 files

Compression Mode
Target File Size
Output Format
Resolution Scale

Reduce pixel dimensions for web use. Lower = smaller file & faster loading.

☕ Support PhotoDiet

This tool is 100% free, private, and runs entirely in your browser. If it saved you time, consider supporting the developer!

How to Compress Images Without Losing Quality

The Myth of 'Lossless' vs 'Lossy'

Photographers and web designers often demand 'lossless' compression because they fear their images will degrade. However, true lossless compression usually only saves about 10% to 15% in file size. PhotoDiet utilizes a highly optimized 'visually lossless' algorithm. Technically, some data is removed, but the removed data is calculated to be imperceptible to the human eye. This allows for massive file size reductions (up to 80%) while your photo looks completely identical to the original.

Perfect for Web Publishers and Photographers

Frequently Asked Questions

Q: Will this affect my website's SEO?

A: Yes, it will significantly improve it. Google uses page speed as a primary ranking factor. By serving compressed images, your site will load faster, satisfying both visitors and search engine crawlers.

Q: What happens to the EXIF metadata?

A: By default, our compressor strips unnecessary EXIF metadata (like camera model and GPS location) to further reduce the file size and protect your privacy.

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