Figstack is a lightweight Chrome extension that explains code in plain English wherever you encounter it, GitHub, Stack Overflow, your own IDE-adjacent browser tabs, without switching to a separate chat window.

Highlight a code snippet on any webpage and Figstack's extension explains what it does, translates it between programming languages, and can generate unit tests or documentation from the selection, all inline where you found the code. Its browser-native design targets a specific moment developers hit constantly: staring at unfamiliar code in a GitHub repo or Stack Overflow answer and wanting a quick explanation without breaking flow to open ChatGPT separately.

Who is it for?

Developers who read a lot of unfamiliar code online, junior engineers learning from open-source repositories, and anyone who wants code explanations without leaving their browser tab.

How much does Figstack cost?

A free tier covers limited daily explanations. Paid plans unlock unlimited use and additional features like test generation, priced affordably for individual developers.

Our verdict

Figstack solves a small but real friction point well: explaining code exactly where you're already reading it. It won't replace a full coding assistant, but as a frictionless browser companion, it earns its place as an extension.