Image guides
How to get image jobs done in the browser — and what each choice costs you. Each guide links to the tool that does it.
When to use JPG
Where JPG is still the right answer in 2026, the quality range that actually matters, and the two things it fundamentally cannot do.
2 min readimageWhen to use PNG
The three situations where PNG is clearly right, the one where it is clearly wrong, and why it is often the wrong default.
2 min readimageDPI vs resolution
Why DPI means nothing on a screen, when it genuinely matters, and what to check when someone asks you for a 300 DPI image.
2 min readimageHow to resize images without losing quality
Why shrinking is safe and enlarging is not, what the fit modes actually do, and the settings that keep a resized image sharp.
2 min readimageImage resolution explained
What megapixels actually buy you, how pixel dimensions drive file size, and how to work out the size an image should be.
2 min readimageJPG vs WebP
How much smaller WebP really is, what it can do that JPG cannot, and the one situation where JPG is still the right answer.
2 min readimageHow to reduce image file size
The three levers, which one to reach for first, and how far each can go before the picture starts to suffer.
2 min readimageWhat is WebP?
What WebP does differently, how well it is actually supported in 2026, when it is the right default, and the cases where it still is not.
2 min readimageJPG vs PNG: which should you use?
A short answer for the common cases, the two properties that actually decide it, and what happens when you pick wrong in each direction.
2 min readimageHow image compression works
The difference between lossy and lossless, what a JPEG actually discards, and why a screenshot and a photograph behave completely differently at the same setting.
3 min read