Which format gives the smallest file size?

WebP typically produces the smallest files. JPEG is the best widely-supported lossy format.

What quality setting should I use?

70-80% is a good balance for web images.

Does optimization reduce dimensions?

Only if you set a maximum width.

Image Optimizer

NEW

Optimize and compress images with quality control and format conversion. See before/after size comparison.

Drag an image here, paste from clipboard (Ctrl+V), or browse

→ Send output to:

How to use Image Optimizer

Upload an image.
Adjust quality and format.
Optionally set max width.
Click Optimize and Download.

What is Image Optimizer?

Image optimization reduces file size while maintaining acceptable visual quality. This tool lets you adjust quality, choose output format, and limit maximum width.

FAQ

Which format gives the smallest file size?: WebP typically produces the smallest files. JPEG is the best widely-supported lossy format.
What quality setting should I use?: 70-80% is a good balance for web images.
Does optimization reduce dimensions?: Only if you set a maximum width.

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Compress JPG, PNG, or WebP photos. Adjust quality, set max width, see size savings. Browser-based, no upload.

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Last updated: 2026-05-24

Image Optimizer

How to use Image Optimizer

What is Image Optimizer?

FAQ

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