Discover the most starred and trending open source tools tagged with #engineering.
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
Chat, specs, tasks, and code. An autonomous engineering platform. Full autonomy when you trust it. Full control when you don't.
Maestro: Netflix’s Workflow Orchestrator
DIE engine
The Context Layer for unstructured data: typed, versioned datasets over S3, GCS, Azure
System of record for how agents build software: Built-in rust harness & 20+ CLIs.
Lovingly referred to as the Swiss Army Knife of PC gaming, Special K does a bit of everything.
Awesome Security lists for SOC/CERT/CTI
Multi Theft Auto is a game engine that turns Grand Theft Auto: San Andreas into networked multiplayer.
Open source requirement tracing suite
WinDbg-like kernel debugger for Windows, from Linux and macOS
🔥🔥🔥 Open source Reverse ETL - alternative to hightouch and census.
Open-source ETL/ELT you deploy on your own servers or cloud. Built on DuckDB: no-code/low-code visual pipelines or SQL, 385 components, dbt, CDC, data quality, reverse ETL, lineage, MCP for AI agents. No vendor cloud, no per-row billing.
Public API, examples, documentation and issues for Binary Ninja
dbt adapter for SQL Server and Azure SQL
A programming language for libraries translated to all the others
Community edition of RepoPrompt: a native macOS context engineering app for AI coding agents, with an MCP CLI.
Egeria core
Wolfram Language / Mathematica reimplementation in Rust (Wolfram oxidized)
ngscopeclient and other client applications for libscopehal.