tscircuit AI-Native Electronics-as-Code Framework

tscircuit Inc. is a San Francisco company registered in California that develops an open-source framework for designing electronics as code. It positions the product as the framework for AI-generated electronics, aimed at hardware engineers and software teams who want circuit boards to be versioned, reviewed and generated in the same way as application code.

Designers write boards in React/TypeScript (TSX) components, which compile to an intermediate Circuit JSON format and render a schematic, a PCB layout and a 3D view. The toolchain includes sub-second local autorouting for four-layer boards, analog simulation based on WebAssembly ngspice, automatic part selection with a bill of materials built from supplier availability, KiCad import and export, and fabrication file output. A tscircuit skill lets coding agents such as Claude Code or Codex generate boards, and an Enterprise edition supports offline circuit design. The core is released under the MIT licence.

• TSX circuit components: boards are composed like user interfaces with props, children and hooks.
• Real-time autorouting: sub-second local routing for four-layer boards.
• AI agent skill: a tscircuit skill for Claude Code, Codex or custom agents covering syntax and CLI workflow.
• Analog simulation: tsci simulate runs SPICE simulation via WebAssembly ngspice in the CLI or browser.
• Sourcing-aware BOM: parts can be specified without part numbers and resolved by supplier availability.
• Exports and KiCad support: fabrication files, netlists, DSN, KiCad import/export and assembly images.

A Vietnamese IoT startup can let its firmware engineers generate sensor and controller boards with AI agents and review them in GitHub. An electronics design service company can keep reusable board modules as code packages across client projects. Universities can teach PCB design with free, browser-based tools.

Hardware teams can review schematic and layout changes through visual diffs, approvals and rollback in GitHub, the same way software is reviewed. AI coding agents can generate and iterate on real, manufacturable boards from text prompts. Sourcing-aware part selection and JLCPCB part import reduce the risk of designing in parts that cannot be ordered. The MIT-licensed core avoids per-seat EDA licence costs for prototyping.

Electronics design is adopting software practices such as version control, code review and continuous integration, while AI coding agents are starting to produce hardware designs directly. Vietnam's growing IoT and electronics design community, which already sources prototypes from nearby PCB fabs such as JLCPCB, can use code-based design to shorten iteration cycles.

tscircuit Inc. is registered in California with an address in San Francisco, according to its terms of service. The framework is MIT-licensed open source with over 2,800 GitHub stars; paid subscriptions and a tscircuit Enterprise offering for offline design are available.