Domain GitHub Repositories (2026) · Open Source Tools

Free domain registration and practical DNS learning resources for everyone.

Synthadoc: An open-source LLM knowledge compilation engine that turns raw documents into structured, local-first wikis. A transparent, human-readable alternative to traditional RAG, which can be self-managed and self-improved without the use of any tools.

Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you find vulnerabilities in your applications, APIs, networks, DNS, and cloud configurations.

Bird frame for Raspberry Pi - real-time bird detection by audio, fully local AI, rendered as real, hand-cut 1800s bird illustrations. On an e-ink panel, a TV, or any screen.

Flight booking system built as .NET 10 microservices with Vertical Slice Architecture, DDD, CQRS, Event Sourcing, gRPC, RabbitMQ, Wolverine, PostgreSQL, MongoDB and .NET Aspire.

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

Grab your own cool'runs-on.dev' subdomain to use for free forever.

Movie browser and player for archive.org

All in One PSA for MSPs, which Unifies client, contact, vendor, asset, license, domain, ssl certificate, password, documentation, file, network and location management with ticketing and billing capabilities, with a client portal on the side.

Grab your own sweet-looking '.is-a.dev' subdomain.

Framework for Evolutionary Message-Driven Microservices on the JVM

Bulk domain availability checking via RDAP, DNS, and WHOIS, with prefix/suffix permutations, regex patterns, MCP, and multiple output formats

A Ruby implementation of an Event Store based on Active Record

Use Apache Causeway™ to rapidly develop domain-driven apps or modular monoliths in Java, on top of the Spring Boot platform. Write your business logic in entities, domain services or view models, and the framework dynamically generates a representation of that domain model as a webapp, GraphQL or RESTful API. For prototyping or production.

Knowledge-Aware machine LEarning (KALE): accessible machine learning from multiple sources for interdisciplinary research, part of the 🔥PyTorch ecosystem. ⭐ Star to support our work!

Experimental full-stack application showcasing Domain-Driven Design, Microservices, Event Sourcing, CQRS and Angular.

Comprehensive list of free email provider domains for signup validation and disposable filtering.

NodaMoney provides a library that treats Money as a first class citizen and handles all the ugly bits like currencies and formatting.

Object-oriented PHP EPP Client

An event sourcing library, complete with all the essential features, powered by the reliable Doctrine ecosystem and focused on developer experience.