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T3 Code

Agentic development environmentsT3 Tools

T3 Code provides desktop, web, and mobile controls for coding agents installed on your machine.

Visit T3 CodeSee the Agentic development environments shortlist
  • Open source (MIT)
  • Desktop, web and phone
  • Bring your own subscription
  • Claude Code, Codex, Cursor and more

At a glance

56,889 GitHub starsVerifiedAs of Nov 11, 2026GitHub repository

How we rank

Evidence notes
  • Evidence level: Verified, primary.
  • The most recommended in the Nov 4 Hacker News thread on Conductor. Stars are the measure.
  • Up from about 18,300 on Aug 12 (Wayback Machine snapshot). The site claims 500,000+ developers, a vendor figure.

Key facts

As of Nov 11, 2026

Who it's for
Developers who want one control surface for their existing coding agents.
What is it built on?
An open-source control surface: a server on your machine with a desktop app, a web app and iOS and Android apps. It drives the agents' own harnesses rather than replacing them.
Where do the agents run?
On your machine, or on a remote machine you connect to, including from a browser or phone.
Can you run several agents at once?
Yes. Many projects and threads at once. A thread can work in the current checkout or a new worktree, and one prompt can start a thread and a worktree per model.
Which models and agents can it use?
Claude Code, Codex, Antigravity, OpenCode, Cursor and Grok, on your own subscriptions.
What do the plans cost?
Free and open source under the MIT license.
How does billing work?
No charge from T3. You pay your agent providers. The project's FAQ says Claude through Anthropic's Agent SDK uses up Claude's 5-hour limit faster than Claude Code itself.
How many people use it?
56,889 GitHub stars on Nov 11, 2026, up from 18.3k on Aug 12. The site says over 500,000 developers have tried it, a vendor claim. It was the tool most often recommended in the Nov 4 Hacker News thread on Conductor joining Meta.
How big is the company?
Built by T3 Tools Inc, Theo's company.
Sources

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Common questions

What is T3 Code?

T3 Code provides desktop, web, and mobile controls for coding agents installed on your machine.

Who is T3 Code for?

Developers who want one control surface for their existing coding agents.

How much does T3 Code cost?

Free and open source under the MIT license. Checked against the vendor's pages on Nov 11, 2026. Plans change often, so confirm before you decide.

Does T3 Code run locally or in the cloud?

T3 Code runs on your machine. You use it through an editor, a browser and a terminal.

What are alternatives to T3 Code?

Other agent workspaces in the directory: Orca, Paradev (formerly Superset), cmux, Conductor, Emdash Classic, Nimbalyst, Schaltwerk, Vibe Kanban. Different categories solve the same problem differently, so see the Agent workspaces category page for tradeoffs.

Compare T3 Code

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