Guides
Short, original explainers behind the tools — written to answer the questions people actually bring to a utility page.
- How to format and validate JSON
Learn what valid JSON actually requires, the errors that break parsers, and how to pretty-print data without changing its meaning.
Updated 2026-08-17
- How to create a strong password (and why length beats complexity)
Password strength is mostly about length and randomness. This guide explains generators, passphrases, and what sites actually check.
Updated 2026-08-17
- Word count vs character count
Platforms, SEO drafts, and school assignments all count text differently. Here is what words, characters, and lines actually mean.
Updated 2026-08-17
- What Base64 is (and is not encryption)
Base64 turns bytes into ASCII so they survive email, JSON, and URLs. Anyone can decode it. It is not a lock.
Updated 2026-08-17
- Markdown basics for notes and README files
Headings, lists, links, and fenced code are enough for most notes. This is the small subset that survives GitHub, docs, and editors.
Updated 2026-08-17
- QR codes: what they encode and when not to scan one
A QR code is just a payload in a square. URLs, Wi-Fi strings, and text all work — so do phishing links. Encode short data, print large enough, and scan with care.
Updated 2026-08-17