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CATEGORY 05 · 20 TOOLS

Coding agent / dev tool

AI pair-programmers and developer tools, for when a no-code build needs real code.

ESSENTIAL IN CODING AGENT / DEV TOOL

  1. Cursor

    AI coding agent/editor; acquired by SpaceX (closed Aug 2026) and part of SpaceXAI.

    FREE TIER

  2. GitHub

    The AI-powered developer platform to build, scale and deliver secure software.

    FREE TIER

  3. GitHub Copilot

    GitHub's AI coding assistant and agent, in the editor, on github.com, in the CLI and in the new Copilot app.

    FREE TIER

All 20 Coding agent / dev tool tools

  1. Cursor

    AI coding agent/editor; acquired by SpaceX (closed Aug 2026) and part of SpaceXAI.

    EssentialFree tier

  2. GitHub

    The AI-powered developer platform to build, scale and deliver secure software.

    EssentialFree tier

  3. GitHub Copilot

    GitHub's AI coding assistant and agent, in the editor, on github.com, in the CLI and in the new Copilot app.

    EssentialFree tier

  4. Google Antigravity

    An agent-first software development platform from Google DeepMind.

    EssentialFree tier

  5. Blume

    Desktop app that tracks what your coding agents built and lets you approve it with evidence.

    Worth a lookFree

  6. Coldtea

    macOS agentic development environment that runs your coding agents, regression-tests every PR with QA agents and watches production, filing what…

    Worth a lookFree tier

  7. Devin / DeepWiki (Cognition)

    Makers of Devin, the AI software engineer; DeepWiki turns any GitHub repo into a browsable wiki.

    Worth a lookFree tier

  8. Elu

    AI 'self-improving software' agent for product teams ('Make your software improve itself').

    Worth a lookFree tier

  9. Factory (Droid)

    Coding agent that works with many AI models; Droid 1.0 runs tool calls as small programs.

    Worth a lookPaid

  10. Kilo Code

    All-in-one open-source agentic engineering platform (5M+ users; bio says acquired by Anaconda).

    Worth a lookFree tier

  11. OpenCode

    Open-source AI coding agent for the terminal and desktop, an alternative to Claude Code and Cursor that works with many model providers.

    Worth a lookFree / open source

  12. React Bits

    Free, open-source library of animated React components (text animations, backgrounds, interactive cards, micro-interactions) by David Haz.

    Worth a lookFree tier

  13. SkillSpector (NVIDIA)

    NVIDIA's open-source scanner for AI agent skills (Claude Code, Codex, Gemini CLI and MCP skills).

    Worth a lookFree / open source

  14. TesterArmy (e2e)

    Agentic testing platform for web and mobile apps: AI agents test your app and report bugs (YC P26).

    Worth a lookFree tier

  15. tstack (Theo Browne's agent skills)

    MIT-licensed pack of nine agent skills for Claude Code and Codex covering the pull-request lifecycle: full-send (takes a change to a merged PR…

    Worth a lookFree

  16. Agentbox

    Free, open-source Mac app that gives your coding agents an inbox.

    NicheFree / open source

  17. Junie (JetBrains)

    JetBrains' AI coding agent, in JetBrains IDEs, JetBrains Air and the Junie CLI.

    NicheFree tier

  18. portless

    Replaces localhost port numbers with stable named .localhost URLs (HTTPS) for humans and agents.

    NicheFree / open source

  19. Repo Prompt

    Native macOS context-engineering tool to get more from AI coding subscriptions.

    NicheFree / open source

  20. shim-cli

    Open-source hook and local proxy for Claude Code, Codex, Copilot CLI and VS Code.

    NicheFree / open source