Image compression guides

Practical advice on compressing images, choosing formats, and making your website faster.

How to Compress Images Without Losing Quality

Smaller images and great-looking images are not opposites. Here is how to cut file size while keeping your photos crisp.

JPEG is everywhere, WebP is the modern default, and AVIF is the smallest. Here is how to choose between them.

There is no single best format, only the best format for each kind of image. Here is how to choose quickly.

Images are often the heaviest part of a page. Optimizing them is the fastest way to a faster site.

Most videos are far larger than they need to be. Here is how to cut the file size dramatically while keeping the footage sharp.

PDF weight almost always comes from images, not text. Here is how to shrink a PDF while keeping it sharp and private.

A bloated deck is almost always caused by full-resolution images. Here is how to shrink a PPTX without changing how it looks.

Offline compression is faster, more private, and works without internet. Here is what matters when choosing one.

Email caps attachments around 25MB. Here is how to get your video under the limit so it actually sends.

When you compress a file online, it usually leaves your device. Here is why that matters and how local tools avoid it.

H.265 makes smaller files, H.264 plays everywhere. Here is how to choose between them when compressing video.

Different files shrink for different reasons. Here is a plain-language guide to how image, video, and PDF compression work.