# The unreasonable effectiveness of HTML — examples > **Sample code. Not maintained and not accepting contributions.** A gallery of standalone HTML examples that accompany the blog post on using HTML as a flexible output format. Each file is a self-contained `.html` page (no build step, no dependencies) demonstrating a different use case — from code review and design systems to slide decks, status reports, and small interactive editors. Open [`index.html`](index.html) for the full, categorized index, or open any numbered file directly in a browser. ## Contents | Category | Examples | |---|---| | Exploration | code approaches, visual designs | | Code | review, understanding, design systems, component variants | | Prototyping | animation, interaction | | Communication | slide deck, status report, incident report, PR write-up | | Diagrams & research | flowchart, feature/concept explainers | | Custom editing UIs | triage board, feature flags, prompt tuner | ## Running There is nothing to install or build. Clone the repo and open `index.html` (or any individual file) in a web browser. ## A note on sample data All product names, data, and scenarios in these examples are fictional and used only for illustration. The placeholder brand "Acme" and any figures shown are not real. ## Security See [SECURITY.md](SECURITY.md) for how to report a vulnerability. ## License Released under the [Apache License 2.0](LICENSE).