T3 Tools Inc.
T3 Tools builds open, customizable developer tools, including T3 Code, an open-source control plane for coding agents. T3 Code lets developers orchestrate multiple coding agents from desktop, web, and mobile while bringing their own provider subscriptions.
At a Glance
- Individual software developers
- Open-source and developer-tool communities
- AI-assisted software engineering teams
- Developers using Claude, OpenAI Codex, Cursor, OpenCode, Grok, or Google Antigravity
AI Tools by T3 Tools Inc.
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T3 Code
AI Coding Agent Orchestrator
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Latest News
T3 Code repository showed the v0.0.40 desktop release and continued active development.
T3 Code Android companion app update added attachments and media previews, multiple task drafts, themes, subscription allowance checks, and performance improvements.
Theo Browne explained that T3 Code was created because the team was unhappy with existing options, emphasized its deeply open architecture, and credited Julius Marminge.
Theo Browne announced that T3 Code was available for everyone and fully open source.
Products & Services
Open-source agent-harness control surface for orchestrating coding agents from an Electron desktop app, web app, or mobile companion. It runs agents on the user's machine and uses the user's existing subscriptions.
iOS and Android companion apps for controlling remote T3 Code environments. Users can launch agent runs, browse files, perform version-control actions, review diffs, and use a terminal from a phone or tablet.
Managed tunnel and sign-in service that simplifies connecting the mobile or web clients to T3 Code environments running on remote computers.
Market Position
T3 Code positions itself as an open-source, provider-agnostic GUI and remote control plane for coding agents. Its documented comparison set includes Codex Desktop, Conductor, Claude Desktop, Cursor/Cursor Glass, and OpenCode; unlike provider-specific GUIs, it aims to combine multiple agent ecosystems, remote/mobile access, and forkability while users retain their existing subscriptions.
Leadership
Founders
Theo Browne
Software developer, YouTuber, and entrepreneur; previously worked at Twitch and built creator-focused software tools. He is identified by Y Combinator as a founder and CEO of Ping Labs, and by T3's public profile as CEO of T3 Code/T3 Chat.
Mark Florkowski
Technical co-founder and CTO of Ping Labs; previously a Support Engineer at Retool (W17).
Executive Team
Theo Browne
CEO
Software developer, YouTuber, and entrepreneur; previously worked at Twitch and founded the T3/Ping Labs venture.
Julius Marminge
Lead engineer / co-creator of T3 Code
Engineer credited by Theo Browne with turning the initial T3 Code experiment into the product; repository history shows him as a principal maintainer and frequent contributor.
Founding Story
The broader venture began with Theo Browne building tools to address problems he encountered as a developer and creator, later becoming the Y Combinator-backed T3 Chat/Ping Labs venture. T3 Code was started as a team experiment after Theo and collaborators were dissatisfied with existing agent interfaces; Theo says Julius Marminge turned the experiment into the product, with the initial vision of a performant, remote-ready, provider-agnostic GUI that is fully open and forkable.
Business Model
Revenue Model
T3 Code is distributed as a free, open-source, bring-your-own-subscription product. Users supply their own subscriptions and authentication for supported coding-agent providers; the public materials do not describe a T3 Code usage-based or seat-based charge.
Pricing Tiers
Desktop, web, and mobile software is presented as free to use; the source is MIT licensed and users bring their own provider subscriptions.
Target Markets
- Individual software developers
- Open-source and developer-tool communities
- AI-assisted software engineering teams
- Developers using Claude, OpenAI Codex, Cursor, OpenCode, Grok, or Google Antigravity
- Developers running multiple AI coding agents or parallel coding tasks
- Remote development from a phone, tablet, browser, or another computer
- Teams and individual developers who want one interface across multiple AI providers
- Developers who need a customizable, forkable alternative to closed-source agent GUIs
- Long-running coding, testing, pull-request, and source-control workflows on remote machines