Sites like sourcemeta.com

JSON Schema is a declarative language and documentation site for annotating and validating the structure and data types of JSON documents

JHipster, an open source platform for generating full stack Java applications with Spring Boot and Angular or React

AsyncAPI, an open source initiative and specification with tools for defining and documenting event-driven architectures, under the Linux Foundation

Fastify, a Node.js web framework project with documentation, community resources, benchmarks and a plugin ecosystem

A catalog of open source JSON, YAML and TOML schemas used by editors and tools for validation and completion

A Substack newsletter and podcast on product management and product growth in the AI era, by Aakash Gupta

The Rollup JavaScript module bundler's official website, with documentation, FAQs, an online REPL and browser build guides

VisiData is an open-source terminal tool for viewing, editing and analysing tabular data, with its documentation and quick reference guide

The official GitHub blog, publishing news, engineering posts, and developer tips about GitHub's products, Copilot, security, and company updates

Gwern Branwen's personal website of essays and blog posts on AI, statistics, psychology, and meta-science, plus personal pages

Prettier, an opinionated code formatter for JavaScript, CSS, Markdown and other languages, with editor and CI integrations

ESLint project website: documentation, playground and team pages for ESLint, the pluggable open-source JavaScript linter

Paseo, a software product site for running and managing multiple AI coding agents across desktop, mobile, and remote machines, with a blog from its team

Zed, an open-source multiplayer code editor from Zed Industries with optional AI agent integration and the Agent Client Protocol

Simon Willison's Weblog, a personal blog by developer Simon Willison on software, AI tools and web programming, plus a Gemini text-to-speech playground

Branchable is a hosting service for Ikiwiki-powered websites, wikis and blogs built on Git

Massachusetts Institute of Technology's official site covering its research, education, campus news and press center

DEV Community, a English-language online community and blogging platform where developers publish posts, tags and challenges about programming and software

OpenCV, the open-source computer vision library, with its services, training, partner program and blog, run by the OpenCV organisation

Personal website of Sebastián Ramírez, a Colombian software developer, sharing ideas, guides and his open source projects like FastAPI

Buttondown, a newsletter hosting platform for independent writers, with sample newsletters from creators such as Lex and Ben Norris

Typst, a markup-based typesetting system and online document creation tool for writing, automating and formatting reports and papers

The NetBSD Project's home site for its free, portable Unix-like operating system, with documentation, platform lists, news and downloads

Eleventy, an open-source static site generator for JavaScript developers, with documentation, blog posts and community author pages