The OpenAPI Specification Repository
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47,133 repositories indexed
1–24 of 62 · Most stars
🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.
- data-format
- llm
- serialization
- tokenization
Code-first platform for workflows, apps and AI agents, on the fastest self-hostable orchestrator (benchmarked against Airflow, Prefect and Temporal). Business teams build with AI, engineers control what ships. Open-source alternative to Lovable, Retool and n8n.
- open-source
- python
- typescript
- postgresql
🛏 An HTML to Markdown converter written in JavaScript
The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.
Application for managing recipes, planning meals, building shopping lists and much much more!
Beautiful Open-Source Form Builder
- form
- form-builder
- laravel
- marketing-tools
Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @breejs.
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨
- open-source
- typescript
- javascipt
- customer-engagement
Small self-contained pure-Go web server with Lua, Teal, Markdown, HTTP/2, QUIC, Redis, TypeScript, npm-less React 19, SQLite, and PostgreSQL support ++
Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.
- api
- api-documentation
- openapi3
- openapi3-1
Open-source, self-hosted newsletter, email marketing and transactional email platform. Visual MJML editor, Liquid templating, 7 sending providers.
- mailing-list
- newsletter
- self-hosted
- amazon-ses
Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.
- serialization
- cpp
- cpp17
- reflection
Better Codable through Property Wrappers
- property-wrappers
- codable
- swift5-1
- swift-package-manager
:white_check_mark: A Go library for email verification without sending any emails.
Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.
A CommonMark wrapper for Laravel
- hacktoberfest
🍯 Unobtrusive and flexible spam protection for Rails apps
A High Performance HTTP Server for Ruby
- http
- ruby
- fast
- web
Multi channel notification service for collaboration tools, e-commerce, news service and more.
- asp-net
- notifications
- web-push
- mobile-push
Scala macros for compile-time generation of safe and ultra-fast JSON codecs + circe booster
- scala
- json
- high-performance
- serialization
Handle unread records and mark them as read with Ruby on Rails
- rails
- activerecord
- ruby
- rubygems
📫 Rails Engine to preview emails in the browser
- hooks
- email-delivery
- rails-engine
- email-preview
Framework for building high quality, interactive API documentation.