Top DEV GitHub Repositories & Tools (2026)

Slack CLI for humans and AI agents. Read, send, search and reply across one or many Slack workspaces from the terminal. No Slack app needed.

Polytoria, a multiplayer gaming platform built with Godot and .NET

AI chat and agent tooling for Godot, with both MCP support and in-built native chat window.

Jenkins automation server

A native macOS terminal for agent-driven development, built on Ghostty.

A World of Tanks-style, Vite-powered, engine-free pure Three.js armored combat simulator resolving plate-level armor, ballistics, modules, spotting, and physics, with 121 tanks and 20 destructible battlefields. Playable entirely in the browser on desktop and mobile devices. Built end-to-end by a multi-agent Claude/Codex pipeline.

PennyWise automatically reads transaction SMS messages and transforms them into organized financial data with on-device AI assistance. No manual entry, no cloud processing, complete privacy.

Open source local-first PR scanner that finds dead code, security bugs, secrets, quality regressions, and AI-code mistakes before merge. For first timers refer to https://duriantaco.github.io/skylos/repo-map/

Open-source universal artifact registry. Drop-in Artifactory/Nexus alternative with 40+ package formats, security scanning, WASM plugins, and edge replication.

Stop your AI from making things up — it proposes, deterministic tools decide, every claim checked against ground truth with evidence. Grounded facts and context survive resets. Reverse engineering is the proving ground. MCP server + CLI.

Open-source room for humans + cross-vendor AI agents. Every agent gets its own name, memory, skills, and workstation. Any runtime, your infra — no per-agent fees.

:house: Buildroot-based, cloud-free smart-home platform for a Homematic IP CCU (CCU3/ELV-Charly). Runs on Raspberry Pi & x86/ARM or as a virtual appliance (Proxmox VE, Home Assistant, Docker/LXC/K8s)...

C# application to switch default playing device. Download: https://soundswitch.aaflalo.me/

AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes CLI, local MCP, catalog, plugins, and Workbench.

Streamlit — A faster way to build and share data apps.

High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

API Documentation Browser

Lightning-fast and Powerful Code Editor written in Rust

Cross-platform, customizable ML solutions for live and streaming media.

Backstage is an open framework for building developer portals