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Dev tools · November 12, 2025

Built a tiny interpreter from scratch in C to understand how they work

Hi HN, I'm the author. I built this project for two simple reasons: I've always used higher-level languages and wanted to finally understand what's happening "under the hood" of an interpreter. I also wanted a real project to force me to "power up" my C skills, especially with manual memory management and reference counting. The result is ToyForth, a minimal interpreter for a Forth-like language, written from scratch in C, stack-based. I focused on making the code clean and understandable. It's broken down into a few simple parts: A parser that turns source text into a list of objects…

Built a tiny interpreter from scratch in C to understand how they work launched on November 12, 2025 with 5 votes, #4,178 of 9,796 launches that month and more than 75% of that year's launches.

What it does

A minimal, clean interpreter in C, built for fun. A perfect starter kit for learning about or building your own language. - renvins/toyforth-interpreter

In the maker’s words, at launch

Hi HN, I'm the author. I built this project for two simple reasons: I've always used higher-level languages and wanted to finally understand what's happening "under the hood" of an interpreter. I also wanted a real project to force me to "power up" my C skills, especially with manual memory management and reference…

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