Guides
How the things behind the tools actually work β written plainly, with the details most explainers skip.
How QR codes actually workWhat the squares in a QR code mean, how they survive damage, and the four reasons a QR code fails to scan. Written by someone who built an encoder.8 min read Β· about QR Code GeneratorHow long should a password be?Length beats complexity, and by a wider margin than most advice admits. What the maths actually says, and what to do instead of changing passwords monthly.7 min read Β· about Password GeneratorHow to reduce image file size without wrecking itWhy your photos are 8 MB, which lever actually shrinks them, and how to pick between JPEG, PNG and WebP. With the sizes each platform expects.7 min read Β· about Image ResizerInstagram fonts, explainedThose fancy bio fonts aren't fonts at all β they're Unicode look-alike letters. How the trick works, why it breaks search, and when to avoid it.6 min read Β· about Fancy Font Generator