Blog & guides

Why these guides?

An online tool rarely answers everything on its own. You generate a password — but how long does it really hold up against a modern attack? You encode something in Base64 — but when does that signal a security mistake (Base64 is not encryption)? You convert an HSL color — but why does your gradient turn grey in the middle? The tools answer the practical question; the guides answer the conceptual one.

Our editorial approach is straightforward: one long-form guide per tool, written by a human or reviewed by a human, sourced (RFCs, ISO standards, academic papers, reference articles), and oriented toward what you need to make an informed choice. No AI slop, no keyword stuffing, no "discover 10 tricks that will amaze you". The bar is set near a good technical article in a specialised journal — accessible but uncompromising on accuracy.

All our guides are free and accessible without signup. Some include contextual affiliate links (notably our password manager comparison); these are systematically labelled and never override our recommendations — for instance we recommend Bitwarden which has no affiliate program at all.

How to navigate this collection

If you arrive from a specific tool, the tool page links directly to its companion guide. If you explore by topic, here are three thematic entry points:

• Security & cryptography — start with password anatomy, then password managers, and finally randomness in computing for cryptographic foundations.
• Development & encoding — Base64 for the fundamentals, Markdown as the web's pivot format, and QR codes for visual encoding.
• Design & sciences — web colors for modern frontend, scientific computing for mathematical foundations, and unit conversion for applied sciences.

Happy reading. For feedback or topic suggestions, write to contact@saw-tools.me.