Open-source alternatives to Markdown Toc

Blackfriday is a Go library for parsing and converting Markdown text into HTML, LaTeX, and other structured formats. It functions as an extensible Markdown processor that transforms syntax into target markup languages. The project is distinguished by its pluggable rendering architecture, which allows for the production of diverse output targets such as Slack message styles, Confluence Wiki Markup, and GitHub Flavored Markdown. It supports custom syntax extensions including definition lists, footnotes, autolinks, and strikethroughs. The processor includes utilities for generating automatic ta

waka-readme-stats is an automated profile README updater and developer statistics dashboard. It integrates with the WakaTime API and compatible self-hosted endpoints to synchronize time-tracking data, which it then transforms into a formatted display of coding hours, languages, and operating systems. The tool operates as a GitHub Action that fetches metrics and automatically updates a profile README file by replacing marker comments with dynamic content via git commits. It allows for custom API endpoint integration to support self-hosted services. The system provides capabilities for metrics

Redcarpet is a security-focused Markdown to HTML parser and customizable renderer. It transforms Markdown text into structured HTML output while utilizing a security layer to filter or escape user-provided HTML tags and restrict link protocols to prevent vulnerabilities. The project distinguishes itself through a framework for custom document formatting, allowing the definition of how specific Markdown elements are converted to HTML via callback functions and custom classes. It also functions as a typographic formatter that converts standard punctuation and dashes into professional curly quot

A responsive Material Design theme for static blogs built with the Hexo framework. It functions as a comprehensive layout system that transforms markdown files into styled HTML pages, providing a specialized environment for technical documentation and personal blogging. The theme is characterized by a data-driven approach to content visualization, using radar charts for categories and word clouds for tags to represent post metadata. It further distinguishes its organization by utilizing a chronological timeline architecture for blog archives. The project covers a wide range of technical publ

Card-style Hugo theme designed for bloggers

Markdoc is a documentation content framework that extends standard Markdown with custom tags, typed schemas, and reusable components, parsing content into an abstract syntax tree and rendering it as React elements or HTML. It provides a structured authoring system where documents are processed through an AST-based pipeline, enabling validation, transformation, and flexible output generation. The framework distinguishes itself through a schema-driven validation pipeline that checks document structure and attribute values against defined rules, and a pluggable renderer architecture that accepts

hugo-book is a documentation theme and static site framework for Hugo designed to create structured technical manuals, documentation books, and multilingual knowledge bases. It transforms directory structures into hierarchical navigation menus and formatted technical content. The framework includes a specialized OpenAPI documentation renderer that converts specifications into structured reference pages. It also provides a full-text client-side search integration and supports multilingual content with right-to-left layout mirroring. The project covers a wide range of content rendering capabil

ife is a front-end resource directory and web development knowledge base designed for technical skill development. It functions as a static site generator that transforms JSON metadata and markdown files into a navigable website. The project organizes educational materials and engineering references into a structured index, rendering plain text files as technical articles and guides. It utilizes a component-based UI library to maintain consistent layout patterns across the documentation site. The system handles technical knowledge management through categorized resource indexing and client-s

This project provides a lightweight markup specification and a plain text formatting standard used to arrange information into structured documents. It serves as a system for converting simple text characters into rich document elements and HTML tags for web display. The project includes a syntax guide and documentation for implementing standardized symbols. These resources cover the rules for creating formatted text and hyperlinks that can be converted into web content. The system covers a broad range of document capabilities, including hierarchical headings, ordered and unordered lists, an

This project is a static site generator and documentation builder designed to transform markdown files into styled HTML documents. It functions as a programmatic conversion engine, allowing developers to integrate markdown processing and layout rendering directly into automated build scripts and content workflows. The tool distinguishes itself through a pipeline-oriented architecture that supports custom plugin integration and metadata-driven template injection. Users can define global or per-file metadata to dynamically populate page content, while the system’s template-based generation allo

Vditor is a browser-based Markdown editor and rendering engine that supports multiple editing interfaces, including a visual rich-text experience, instant rendering, and a traditional side-by-side split-view preview. It serves as an authoring tool for technical documentation and a component for web-based editor integration. The project is distinguished by its support for complex technical content, utilizing specialized rendering for mathematical formulas, flowcharts, sequence diagrams, and mind maps. It also functions as a collaborative document review tool, enabling users to attach anchored

This project is a technical reference knowledge base and developer cheat sheet repository. It functions as a searchable collection of quick-reference guides, CLI command patterns, and code snippets for various operating systems, cloud platforms, and infrastructure tools. The system operates as a markdown-based technical knowledge base, where content is stored in plain text files and rendered as a static site. This approach enables a personal knowledge management system that utilizes version control and a directory-based navigation hierarchy to organize technical notes for long-term retrieval.

Markdig is a markdown parser library that converts text into structured HTML, plain text, or other formats using a configurable pipeline. It functions as a CommonMark compliant parser and an abstract syntax tree generator that transforms markdown into a hierarchical tree of block and inline nodes with precise source location mapping. The project is distinguished by a decoupled renderer architecture that separates parsing logic from output generation, enabling the transformation of the syntax tree into non-HTML formats such as LaTeX or XAML. It also serves as a lossless markdown processor by t

This project is a formal markdown specification standard that provides a detailed markup syntax definition and a definitive set of rules for parsing plain text into consistent HTML output. It establishes a standardized grammar for structural blocks and inline elements to ensure uniform rendering across different software implementations. The specification is supported by a parser conformance suite and a reference implementation in C and JavaScript to verify that implementations adhere to the standard. It includes a system for implementation verification that compares transformed input strings

This project is a protest coordination toolkit and activism resource repository designed to distribute curated documents and legal guides. It serves as a hub for coordinating political protests and civil disobedience by providing a public website that hosts informational materials. The toolkit functions as a forkable codebase, allowing users to rapidly replicate the site structure to deploy their own protest sites. It uses a static site model to transform markdown documentation into publicly accessible pages for sharing across social media. The platform covers activist information distributi

This project is a machine learning educational resource and study site focused on the theoretical foundations and mathematical derivations of machine learning algorithms. It serves as a study guide for mastering the linear algebra, calculus, and proofs required for predictive modeling. The site functions as a markdown documentation portal and static site generator, converting formatted text and LaTeX formulas into a structured web interface. It utilizes a typesetting engine to render complex academic derivations and mathematical equations clearly within the browser. The platform includes a r

pdf-craft is an OCR-based document parser and structure extractor designed to convert PDF files into structured data, Markdown, or EPUB ebooks. It utilizes optical character recognition and statistical analysis to identify document hierarchies and extract text and structured content. The system features specialized rendering for mathematical formulas and tables, using heuristic reconstruction to convert tabular data into digital formats. It includes a document structure extractor that builds tables of contents by analyzing font sizes, linguistic patterns, and language model title detection.

This project is a collection of standardized markdown layouts and component libraries used to organize project documentation, user profiles, and technical diagrams. It provides predefined templates for creating professional GitHub profile pages and structured documentation for open source projects, including guides for installation, usage, and contribution. The library features specialized templates for rendering flowcharts and sequence diagrams using text-to-visual syntax. It also includes a system for integrating dynamic profile statistics and status cards that automatically display user co

Just the Docs is a Jekyll theme designed for building documentation sites that are hosted on GitHub Pages. It provides a responsive, mobile-friendly layout with built-in search, hierarchical navigation, and extensive customization through overridable SCSS variables, Liquid includes, and page layouts. The theme distinguishes itself through a file-based navigation hierarchy that automatically generates multi-level collapsible menus from directory structures and front matter, combined with client-side full-text search that indexes page content at build time. It includes automated deployment via

Simpread is a browser extension that transforms any web page into a clean, distraction-free reading layout optimized for comfortable reading and annotation. It functions as both a reading mode tool and a read-later service, allowing users to save pages for offline or future access while marking up text with highlights and notes. The extension distinguishes itself through deep integration with note-taking and productivity platforms, enabling direct export of annotations and cleaned pages to Obsidian, Logseq, Roam Research, Notion, and other tools. It also supports sending articles to Instapape

Editor.md is an embeddable Markdown editor component for web applications that provides a real-time, dual-pane live preview alongside the raw source as the user types. It is designed as a plugin-based Markdown editor with a plugin architecture for extending functionality through custom modules, and it supports rendering LaTeX mathematical expressions using KaTeX as well as converting flowchart and sequence diagram syntax into visual diagrams within the preview. The editor distinguishes itself through its plugin-based extension system, which allows loading additional functionality through exte

Ghostwriter is a distraction-free markdown text editor and document processor. It provides a focused writing environment for composing documents using markdown syntax, separating the drafting process from final formatting. The application features a minimalist interface designed to minimize visual clutter, including the ability to disable deletion keys to enforce a forward-only drafting flow. It includes a live statistics dashboard for tracking word counts and session metrics, as well as visual highlighting that fades non-active text to focus attention on the current line, sentence, or paragr

Standard README is a markdown documentation standard and specification designed to organize project metadata and instructions. It functions as an open source governance framework that establishes a formal set of rules and templates to ensure project information remains predictable and consistent across different repositories. The project provides a documentation compliance validator to check if a README complies with these predefined formatting standards. It includes tools for README template generation to produce baseline documentation files and a system for signaling specification complianc

Reader is a Win32 text reader and EPUB document viewer for Windows. It functions as an auto-scrolling text viewer and a web novel downloader that renders digital books and plain text using various character encodings. The application includes a text-based content filter to remove advertisements and irrelevant text from web sources using regular expressions. It provides hands-free reading capabilities through automated page-turning and scrolling modes governed by custom time intervals. The software manages digital book organization through reading progress tracking, bookmark management, and t

Percollate is a command-line tool for converting web pages and RSS feeds into structured files. It functions as a web content converter, static document generator, and page bundler that transforms online content into PDF, EPUB, HTML, or Markdown formats. The tool creates self-contained documents by embedding external images as encoded data URLs and applying custom HTML templates and CSS stylesheets. It can combine multiple web URLs or feed entries into a single digital book featuring a generated table of contents and hyperlinked index. Additional capabilities include the decomposition of Ato

HedgeDoc is a self-hosted documentation platform and real-time collaborative Markdown editor. It serves as a digital workspace for creating shared technical notes and managing knowledge through a privately hosted system. The platform enables multiple users to write and format Markdown documents simultaneously in a shared live environment. It integrates external identity providers such as LDAP, SAML, and social platforms via OAuth2 to manage user access and authentication. The system includes capabilities for content publishing, including exporting notes to GitHub Gists and generating automat

This project is an interactive tutorial generator and static site generator that transforms source documents, such as Markdown and Google Docs, into structured instructional guides. It functions as a documentation conversion tool that compiles source content into static HTML assets and metadata for distribution to public or private audiences. The system utilizes a custom element UI framework to embed interactive instructional components using standard HTML custom elements, removing the need for external JavaScript frameworks. It supports multi-format content export, allowing a single source o