Show HN: Simten – design hardware in TypeScript and simulate it in the browser

Category: devtools

Tags: hardware-design, typescript, simulation

Score: 8.3/10 (Innovation: 8, Technical: 9, Documentation: 9, Utility: 7)

Simten is a TypeScript-native hardware description language that lets developers design and simulate digital circuits directly in the browser, with the ability to synthesize to Verilog for real FPGA deployment. Its unique approach combines a typed, IDE-friendly API with an intermediate representation that powers visual editing, time-travel debugging, and AI-assisted development via MCP, bridging the gap between educational simulators and industrial HDLs.

Target audience: hardware engineers, fpga developers, backend devs

Repository: https://simten.dev/ · TypeScript · Apache-2.0 · 2 stars

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