superstruct
A simple and composable way to validate data in JavaScript (and TypeScript).
Updated by @ianstormtaylor
ts-interface-checker
Runtime library to validate data against TypeScript interfaces
Updated by @paulfitz
magicli
Automagically generates command-line interfaces (CLI) for any module. Expected options and help sections are created automatically based on parameters names, with support to …
Updated by @diegozoracky