Best Open Source Tools by Tag in 2026

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Open Source Alternatives

hyperresearch

stars 3.8Kforks 377

Deep research agent with a persistent vault for Claude Code

Knowledge Management AI Agents Developer Tools

OpenResearch

stars 6.9Kforks 445

Local-first workspace for parallel research agents and experiments.

AI Agents Developer Tools LLMOps

Sonarr

stars 17Kforks 2K

Smart PVR for Usenet and BitTorrent TV fans

Developer Tools Video Self Hosted

DeskcommCRM

stars 4.5Kforks 1.2K

AI agents for WhatsApp sales, fully audited, no per-user pricing

CRM AI Agents Self Hosted

iloader

stars 3.9Kforks 276

Free open-source iOS sideloader for Windows, Mac, and Linux

Developer Tools CI/CD Platforms Self Hosted

Neon-Vision-Editor

stars 449forks 23

Native Apple text and Markdown editor with safe file sync

Developer Tools Note-taking Apps

armorpaint

stars 5.4Kforks 619

Open source 3D PBR texture painting with GPU acceleration

3D Modeling Graphic Design Developer Tools

CloddsBot

stars 3Kforks 357

AI trading agent for crypto, DeFi, and prediction markets

AI Coding Assistant Developer Tools Web3+2

text-to-cad

stars 19.8Kforks 1.9K

AI agent skills for CAD, robotics, and fabrication workflows

3D Modeling Developer Tools AI Coding Assistant

magic-compact

stars 174forks 18

Lossless context compression for Claude Code and OpenCode

LLM Developer Tools AI Coding Assistant

teamai-cli

stars 5.4Kforks 421

Git-backed AI config sync for engineering teams

AI Agents Knowledge Management Developer Tools+1

leanctx

stars 326forks 7

Drop-in LLM token compression. Code stays verbatim; prose compresses.