Build self-contained single-file browser tools with inline CSS and JavaScript.
npx skills add https://github.com/rohunvora/my-claude-skills --skill html-tools
Please help me install this Agent Skill. Skill: html-tools Source: https://github.com/rohunvora/my-claude-skills/tree/main/.claude/skills/html-tools Command: npx skills add https://github.com/rohunvora/my-claude-skills --skill html-tools
This Skill enables building single-file browser tools (HTML/CSS/JS) that run without backend or build steps, enabling rapid prototyping, easy sharing, and offline use.
Create index.html using the minimal single-file template and host it with GitHub Pages or a static host.
High-intent search queries and answers about installing and using this skill.
Single-file HTML apps combine inline CSS and JavaScript in one HTML document, with dependencies loaded from CDNs. This approach eliminates build tools and bundlers, letting you create functioning browser tools by writing vanilla JavaScript directly in HTML, then hosting the file on any static host like GitHub Pages.
Yes. Single-file browser tools run entirely on the client side using localStorage, URL state, and native browser APIs. No backend or server connection is required, making them ideal for offline use, quick prototypes, and shareable demos that work immediately when opened in a browser.
Start with a minimal single-file HTML template containing inline CSS and JavaScript. Load external libraries from CDNs as needed, then host on a static host like GitHub Pages. This workflow skips setup time, requires no dependencies or build configuration, and lets you iterate and share instantly.
No. Vanilla JavaScript in a single HTML file is sufficient for prototyping utilities, offline data processing, and lightweight visualizations. Frameworks add complexity; plain HTML, CSS, and JavaScript with CDN-loaded libraries provide the same functionality for small, self-contained applications.
Create a self-contained HTML file with all CSS and JavaScript inline, then host it on a static file host like GitHub Pages or any CDN-capable service. Users access it via a direct URL; the entire app runs in their browser with no backend infrastructure needed.
Single-file apps work well for lightweight utilities and offline tools but lack scalability for complex state management or large datasets. They cannot call external APIs directly due to CORS restrictions, though you can work around this with proxy services or JSONP. Performance degrades with very large inline codebases.
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