Guides
Practical guides on compressing and optimizing images.
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How to compress images for a website
A practical guide to compressing website images without losing quality: how much to compress, which format to pick, and a fast workflow.
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WebP vs JPEG vs PNG: which format and when
WebP vs JPEG vs PNG compared: strengths, when to use each, browser support, and lossy vs lossless, so you pick the right format every time.
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Can you compress an image without losing quality?
Yes, if you only remove what the eye cannot see. Measured on a real photo: 91% smaller, average pixel difference 2.85 out of 255.
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How to compress photos on iPhone
Make iPhone photos smaller without visible quality loss: HEIC vs JPEG, the camera format setting, and compressing in Safari with no app to install.
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Compress WebP without losing quality
Measured: a WebP exported at quality 90 still gives up 36 to 47 percent with no visible change. What shrinks, what does not, and why.