Brain GitHub Repositories (2026) · Open Source Tools

An agentic skills framework & software development methodology that works.

OpenHuman is the fastest, cheapest, most efficient open-source agent harness. Written in Rust

An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian.

Secure environments for developers and their agents

Get tasks and ideas out of your head. A free GTD to-do app for desktop and mobile. Works offline, no account needed

Picard is a cross-platform music tagger powered by the MusicBrainz database

Your Company Agentic Operating System

The best in open-source music discovery.

Claude Code GUI plugin for JetBrains IDEs. (ex - Claude Code with GUI)

Your Self-Hosted Knowledge Base

AI assistant in Telegram that remembers everything and helps you run your life. Self-hosted in one command.

Run any process, on your machine or in an AI agent's environment, as if it were a pod in your Kubernetes cluster: real env vars, DNS, network, traffic.

IdeaVim – A Vim engine for JetBrains IDEs

JetBrains Maple Mono: The free and open-source font fused with JetBrains Mono & Maple Mono

A curated list of fruit fly connectome projects: MaleCNS, FlyWire, brain simulations, embodied models, games, and research tools.

Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent.

QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.

A queryable second brain over your scattered notes and docs - hybrid retrieval (vector + BM25), section-level citations, and an MCP server so AI agents can use it. ~300 lines, no LangChain.

:strawberry: Strawberry Music Player

Framework for AI agents to build and maintain a digital brain through Obsidian wiki | Memory System for Agents