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Alternatives

Products that do what Castor does

Spotlight that executes tasks instead of just finding them

  1. 1
    Osaurus540

    Open source agents that run 100% locally on your Mac

    Jul 2026 · osaurus.ai

  2. 2
    mTarsier188

    Open-source platform for managing MCP servers and clients

    Mar 2026 · mtarsier.com

  3. 3
    Clicky144

    AI buddy next to your cursor on Mac—sees, guides, helps you!

    Apr 2026 · github.com

  4. 4

    Run AI agents on your Mac with scoped access

    17d ago · plow.co

  5. 5

    Real-time AI coding assistant telemetry in your Mac's notch

    Jan 2026

  6. 6

    Remote desktop for AI agents running on headless Macs

    Apr 2026 · astropad.com

  7. 7
    Rebolt110

    Build AI-powered apps and agents, by speaking with AI

    2025

  8. 8

    Open-source homeserver OS with a built-in AI agent

    Jul 2026 · livinity.io

  9. 9
    Macuse114

    Give Your AI Superpowers on macOS

    Jul 2026 · macuse.app

  10. 10

    Open-source Computer Use MCP for AI agents

    May 2026 · github.com

  11. 11

    Open-source malware scanner and runtime guard for AI agents

    Jul 2026 · panguard.ai

  12. 12
    AgentOS100

    Manage AI agents, tasks, workspaces from one control layer

    Jun 2026 · sapienx.app

  13. 13
    Rosply90

    AI agent that controls your computer autonomously

    Jun 2026 · rosply.com

  14. 14
    Pulser3

    Know exactly when your AI needs you

    Feb 2026

  15. 15TA

    Hi HN I recently got married, promptly had a bit of a meltdown, and decided to lock myself in a room and build for a while. At the same time, I was trying to outbound sell for my startup and kept running into the same problem: I wanted an automation tool that could actually use my computer like a person. Click through UIs, copy/paste between apps, handle messy workflows — not just APIs and webhooks. I couldn’t find anything that felt: - consumer-friendly (non-technical) - local-first - flexible enough for real-world, UI-driven tasks So I challenged myself to see how far I could get…

    Jan 2026 · automatewithtasker.com

  16. 16

    Local-first desktop agent for everyday work

    Jul 2026 · openworker.com

  17. 17

    The trusted marketplace for AI agent skills.

    Feb 2026

  18. 18

    Private AI for your Mac. Free. No cloud, no account.

    Jul 2026 · typer.space

  19. 19

    An autonomous agent you can hand a shell to. Every tool call passes a gate that grants authority for exact arguments, once, for 30 seconds — and logs the verdict.

    9d ago · talos-agent.ch

  20. 20AO

    Hey HN, I built an AI-powered UI for macOS that automates tasks on both macOS and in browsers. I didn’t want to pay $200 for OpenAI’s operator, so I made my own using browser-use and macOS-use. It handles simple tasks like scraping data, filling out forms, and using macOS apps. It's not great at working with files yet, but I’m planning to improve that with custom tools for the LLM. The goal is to create a desktop “pet” that takes care of boring stuff—like drafting documents and filling out forms. Check it out and let me know what you think!

    2025 · github.com

  21. 21

    The AI Agent That Sees What You Can't

    Dec 2025

  22. 22

    Open-source AI coworkers that each get a computer of their own: a browser, files and tools, with every action decided before it happens and recorded after. Bring any AG-UI agent. - CopilotKit/OpenBot

    18d ago · github.com

  23. 23

    Your AI has your code's text, never its map. Fix that.

    Jun 2026 · luuuc.github.io

  24. 24AA

    Hey HN! We've just open-sourced Agent, our framework for running computer-use workflows across multiple apps in isolated macOS/Linux sandboxes. After launching Computer a few weeks ago, we realized many of you wanted to run complex workflows that span multiple applications. Agent builds on Computer to make this possible. It works with local Ollama models (if you're privacy-minded) or cloud providers like OpenAI, Anthropic, and others. Why we built this: We kept hitting the same problems when building multi-app AI agents - they'd break in unpredictable ways, work inconsistently across…

    2025 · github.com

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