Guides
These guides explain the concepts behind the tools on iloveutil.com. The goal is to make each page useful even if you never click a button: you should understand what is happening, what trade-offs exist, and what to do when results look wrong.
How Image Compression Works
A practical explanation of why images get large, what lossy and lossless compression mean, how JPEG/PNG/WEBP differ, and how to choose sensible settings for real projects.
Looking for tools instead?
Start with Categories or browse the complete All Tools directory.