Awesome GitHub RepositoriesInline Metadata Annotations

This project is a metadata query engine and indexer for markdown files, designed to transform YAML frontmatter and inline fields into dynamic tables and lists. It provides a background process that extracts tags and custom fields into a searchable database, enabling the automated indexing of notes. The system is distinguished by its dual approach to data retrieval: a dedicated query language for SQL-like filtering and grouping, and a JavaScript data API. This API allows for programmatic metadata extraction and the creation of custom views and extensions using TypeScript typings. Its broader

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

Codehike is a React-based documentation framework and interactive code walkthrough tool. It functions as a markdown content orchestrator that transforms decorated markdown into structured data and React components, serving as a visualization layer for highlighting code ranges, diffs, and compiler errors. The project is distinguished by its ability to create scrollycoding experiences and step-by-step technical tutorials. It features token-level animations that visually demonstrate how logic evolves between code versions and provides a system for syncing UI state to the browser scroll position.

TagSpaces is an offline-first file tagging and organization platform that lets you manage local files with portable metadata stored directly in filenames or sidecar JSON files, eliminating the need for a central database. It functions as a full-text file search engine, a Kanban board file organizer, a local AI file assistant, an S3-compatible cloud file manager, and a web clipper and bookmark manager, all within a single application. The project distinguishes itself through a local-first architecture where all file operations, indexing, and AI processing run entirely on the device, with cloud

novelWriter is a plain text writing environment designed for composing long-form narratives and novels. It functions as a distraction-free prose editor and narrative orchestrator, allowing authors to manage complex plot structures by dividing stories into small, manageable documents. The system emphasizes long-term data portability by storing all content in human-readable text files rather than a centralized database. It features a specialized metadata editor that embeds hidden comments, synopses, and cross-references directly within the text using a non-printing markup syntax. The software