quick-lint

quick-lint is a small, security-minded publisher that concentrates on one thing: giving JavaScript developers the fastest possible feedback loop. Its flagship tool, quick-lint-js, behaves like a background spell-checker for modern ECMAScript code, flagging syntax slips, undefined variables, dubious type coercion, and subtle runtime traps the moment a file is saved. Because the linter is written in native C++ and exposes Language Server Protocol hooks, it plugs cleanly into Visual Studio Code, Vim, Emacs, Sublime, and JetBrains IDEs without introducing the latency typical of Node-based checkers. Projects ranging from browser bundles and Node servers to Deno scripts and embedded QuickJS firmware benefit from the near-instant red squiggles, CI-friendly JSON reporters, and optional JSON-schema validation rules. The engine keeps pace with yearly language additions—private fields, top-level await, import maps—while optional security profiles warn when code tries to access ambient Node globals or stray outside a declared dependency list. Configuration is intentionally minimal: a single .quick-lint-js file or inline // comments turn rules on or off, so teams can enforce style or relax checks without wrangling lengthy rule tables. quick-lint-js is offered free of charge on get.nero.com, where the Windows build is delivered through trusted package sources such as winget, always installs the newest release, and can be pulled in alongside other development utilities for unattended batch setup.