Open Source Developer Tools
Discover 447 open source Developer Tools repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Developer Tools projects here are most often combined with Python, AI Agents and CLI. Last updated October 4, 2026.
447 repositories · updated October 4, 2026
ai-samples: Learn AI Development Patterns for .NET
.NET code samples show how to integrate AI services, build chat experiences, call functions, and evaluate model responses. The repository is archived, so use it as a reference and follow the current .NET AI documentation for maintained guidance.
tolgee-platform: Manage Software Localization and Translations
Tolgee is a web-based localization platform for developers and translation teams. It brings in-context editing, translation workflows, SDK integrations, and machine-assisted suggestions together for projects that need to manage translations across languages.
systeminformer: Monitor Windows Activity and Debug Processes
System Informer is a Windows utility for monitoring system resources, inspecting processes, debugging software, and investigating malware. It suits administrators and developers who need detailed, real-time visibility into system activity.
n8n-nodes-minio: Manage MinIO Objects in n8n Workflows
A TypeScript community node that connects n8n workflows to MinIO for object removal and presigned download or upload URLs. It suits teams that need these storage actions inside workflow automation and can configure MinIO credentials.
waha-net: Use the WAHA WhatsApp API from .NET
A C# client library for integrating WAHA, the WhatsApp HTTP API, into .NET applications. Use it to connect to WAHA sessions and retrieve chat data through a .NET-friendly client.
magictunnel: Find and Run MCP Tools from Natural Language
MagicTunnel is a Rust-based MCP proxy that presents a single smart tool for discovering and invoking other tools from natural-language requests. It also includes a management dashboard, service supervisor, and tools for generating capabilities from API definitions.
repomix: Pack Codebases for AI Analysis
Repomix combines repository files into a structured, AI-friendly output for code review, exploration, and other LLM workflows. Use it from the CLI, website, or as an MCP server, with controls for file selection and token usage.
DumbTerm: Access a Linux Terminal in Your Browser
DumbTerm provides browser-based access to a terminal running locally or in a Docker container. It suits self-hosters and developers who need a convenient terminal interface, with optional PIN protection and Starship prompt integration.
debugpy: Debug Python Programs with DAP Clients
debugpy implements the Debug Adapter Protocol for Python 3, connecting Python programs to compatible debugger clients. Use it to launch or attach to a process, pause execution, and inspect program behavior during development.
PyUIBuilder: Build Python GUIs with a Visual Editor
PyUIBuilder is a browser-based drag-and-drop editor that generates Python GUI code for Tkinter and CustomTkinter. It helps Python developers prototype interfaces visually, with support for third-party widgets and multiple layout approaches.
harbor: Run a Preconfigured Local AI Stack
Harbor is a CLI and companion app for starting connected local LLM services with Docker Compose. It suits people experimenting with models and AI tools who want a shared setup without wiring each service by hand.
antares: Manage SQL Databases with a Desktop Client
Antares is a cross-platform SQL desktop client for developers who want database management and query editing in one workspace. It supports MySQL/MariaDB, PostgreSQL, SQLite, and Firebird, with releases for Windows, Linux, and macOS.