This repository is a curated collection of over 3400 SVG icons for popular brands, maintained by the Simple Icons project. It is primarily a data repository, with the core assets being the SVG files in `icons/` and the structured metadata in `data/simple-icons.json`. The JSON schema defines brand title, hex color, source URL, guidelines, license, and aliases (including duplicates, localizations, and old names). The repository includes a comprehensive toolchain for managing and validating the icon set: scripts for adding/removing icons, formatting data, and running lint checks (custom linter `ourlint.js`, SVG linting via `svglint`, and JSON schema validation). A JavaScript SDK (`sdk.mjs`) provides utilities for accessing icon data, slug generation, and color normalization. The project is published as an npm package and also served via a CDN. While the primary purpose is data curation, the repository exhibits strong software engineering practices with automated CI/CD (GitHub Actions for release, label sync, issue management), pre-commit hooks, and extensive tests that validate every icon's properties. It is a hybrid of a data collection and a well-engineered toolset for maintaining that collection.
Font Awesome is a distribution repository for the widely-used open-source icon library. It provides icon assets in multiple formats: CSS (with font-face declarations), individual JavaScript/TypeScript modules for tree-shaking, SCSS partials, SVG sprites, and web fonts. The repository contains the compiled output of the free icon set, including thousands of icons across solid, regular, and brand styles. The code is almost entirely generated by upstream build tooling, resulting in a highly consistent but boilerplate-heavy structure. The core value is the icon content itself, not the software engineering craft. The repository is actively maintained, with frequent additions of new brand icons and style variants, and maintains backward compatibility via shims and alias mappings. It is a hybrid of a static asset library and a JavaScript package distribution, but has no application logic, data pipelines, or research components.