Hit GitHub Repositories (2026) · Open Source Tools

A reading path for CPU performance engineering, from one instruction to production inference. Primary sources only, with a runnable benchmark for every section.

Visualize any GitHub codebase: free interactive architecture diagrams and one-minute explainer videos. Replace 'hub' with 'diagram' in any GitHub URL.

Virtual whiteboard for sketching hand-drawn like diagrams

Autonomous LLM Trading Asterism — a research-only multi-agent trading platform with evidence-first research, an auditable console, Shadow simulation and explicitly authorized broker execution.

🌸 The Cutest Music Player With Support Local File and Youtube Music for Android!

A powerful little TUI framework 🏗

Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.

A markdown editor — and the bridge to your LLM. Local-first, MIT, ~15 MB. Bundled MCP server lets Claude Code / Codex / Cursor drive your vault directly. 14 AI providers BYOK.

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

Kition brings Markdown, DataTable, WhiteBoard, a tool-using AI agent, browser research, and visual workflows into one desktop workspace.

The MIT-licensed infinite-canvas whiteboard SDK. An open-source tldraw alternative — no license fee, free for commercial use. React, React Native, and plain JS.

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

The why layer of repo-native project memory: the reasoning behind a codebase as Markdown in the repo, versioned by Git, for coding agents and humans, so nothing rejected is proposed twice. No database, no daemon, no account.

Stop letting AI code blind. Map the architecture before every change with Birdview.

Taikai is an extension of the popular ArchUnit library, offering a comprehensive suite of predefined rules tailored for various technologies.

Whiteboard for Driving Scenarios🚗

Register, calculate and make reminders for your recurring expenses alongside credit card due dates.

Deterministic, local-first memory and guardrails for AI coding agents with no LLM in the hot path.

Golang client for NATS, the cloud native messaging system.

Stock Android Launcher From Scratch