Developer / code utilities (formatters, testers, generators)

This corner of INDEX gathers the kind of practical developer utilities that make small-but-important tasks feel much less fussy. If you need to publish a project site straight from repository contents, GitHub Pages covers everything from hand-written HTML to Jekyll-based Markdown sites, optional themes, and custom domains. For writing and reshaping documentation, Dillinger gives you a live Markdown editor with preview, exports, cloud service integrations, offline editing after load, dark mode, and even Vim or Emacs keybindings, while MarkdownToText.com is handy when you just need to turn Markdown into plain text, rich text, HTML, or PDF — especially for notes, documentation snippets, or AI-generated responses that need cleanup.

There are also tools here for more specialized workflows. McStumble’s QR Code Generator keeps QR creation simple and local in the browser, turning URLs, text, contact details, or WiFi credentials into downloadable codes with a few basic styling controls. Shodan sits at the more technical and security-focused end of the shelf: a search engine for Internet-connected devices and services, with monitoring, IP intelligence, maps, images, bulk data, and API access for research and network visibility. Taken together, these listings are a compact toolkit for publishing, formatting, converting, generating, and investigating — the sort of utilities you may not need every hour, but are very glad to have bookmarked when the moment comes.