Top HTML GitHub Repositories & Tools (2026)

🕸 Turn almost any website into an RSS feed and serve it instantly. Automatic scraping. Start fast with Docker.

slideshow gems - write your slides / talks / presentations in plain text with markdown formatting conventions

🕵️‍♂️ All-in-one OSINT reconnaissance tool for dissecting any website. 🧠🌐💥

A lightweight Typescript library that interacts with Gotenberg's different modules to convert a variety of document formats to PDF files.

NukeViet CMS is multi Content Management System. NukeViet CMS is the 1st open source content management system in Vietnam. NukeViet was awarded the Vietnam Talent 2011, the Ministry of Education and Training Vietnam officially encouraged to use.

Check for broken links in markup files

Routing feature for Compose Web, Compose HTML and Desktop

Unofficial Tailwind CSS extension for IntelliSense, linting, sorting, and more to enhance the development experience in Visual Studio 2026 and 2022.

📝 Markdown and HTML renderer for Svelte 5 — built for streaming AI agent output from Claude Code, ChatGPT, and agentic workflows. XSS-safe defaults, token caching, TypeScript types.

⚙️ The static code analysis tool you need for your HTML

Web Components for building declarative, graphical web apps

:syringe: Fast, caching, dynamic inline SVG DOM injection library.

ATON framework is based on modern web standards and technologies to create interactive, liquid and collaborative Web3D/WebXR apps targeting Cultural Heritage field. It adopts a “develop once, deploy everywhere” approach, providing building-blocks and a modular architecture

PHP library to find URLs in text and turn them into clickable links. Made to handle complex URLs, HTML markup and edge cases.

Zero-initial-JS selective activation engine. Turn server-rendered HTML into instant interactivity on intent.

Ruby on Rails MIME and syntax files for gedit

Web crawler for checking the validity of your documents.

🦴 2dog is Godot in .NET

📄 Convert HTML/CSS to PDF or images instantly

e107 Bootstrap CMS (Content Management System) v2 with PHP, MySQL, HTML5, jQuery and Twitter Bootstrap. Issue Discussion Room: https://gitter.im/e107inc/e107