Guides
Each guide answers one question and links to a tool you can use straight away.
Aspect ratios explained: how to calculate and resize without distortion
How to reduce any width and height to a ratio, find a missing dimension, and decide between scaling, cropping and padding.
How reading time is calculated, and why estimates differ
Reading-time labels divide word count by a reading speed. The speed you choose matters more than anything else, so here is what research says about it.
How to compress images for a website without visible quality loss
A practical order of operations: pick the right format, resize to the size you display, then lower quality until you can see a difference and step back.
How to fix the most common JSON syntax errors
Trailing commas, single quotes, comments and unquoted keys cause most invalid JSON. Here is how to spot each one from the error message.
How to make a QR code that scans reliably
Static vs dynamic codes, error correction levels, contrast, quiet zone and print size: the details that decide whether a QR code works on the first try.
Title Case vs sentence case: which one to use and when
What each style capitalizes, how Chicago and AP differ on small words, and why many product and web teams now prefer sentence case for headings.