Guides and comparisons

Written to be useful to someone deciding between two tools, which means saying where the other one is better.

WebP, JPEG or PNG: which should you use?

Three formats, three different jobs. What each one is good at, where each one wastes bytes, and the one question that decides it in most cases.

路 7 min read

How to compress images without losing quality

Where the bytes in an image actually go, why re-saving a JPEG twice is worse than saving it once, and how far you can push compression before anyone notices.

路 6 min read

How to batch rename files safely

Sequence numbers, collisions and sort order. The rename patterns worth knowing and the two mistakes that make a batch rename impossible to reverse.

路 6 min read

What image upscaling can and cannot do

Upscaling invents plausible detail rather than recovering lost detail. Where that is genuinely useful, and where it quietly produces something untrue.

路 5 min read