Designed specifically for user interfaces, Inter is often cited as "better than Helvetica for UI design" and is a top-notch free alternative. Similarly, Roboto is a good neo-grotesque sans commissioned by Google and released for free, making it an excellent, widely supported fallback with a large community around it.
The best practice is to use a robust CSS font stack that specifies multiple fallbacks. A highly effective stack looks like this: font-family: Inter, Roboto, "Helvetica Neue", "Arial Nova", "Nimbus Sans", Arial, sans-serif; . This ensures that if the specific Helvetica Neue font isn't available, the browser seamlessly falls back to a similar free font like Roboto or the system default, maintaining the integrity of your design. helvetica neue font family github
Important: you will rarely find a legally redistributable copy of the official Helvetica Neue binaries on public GitHub repositories, because the font is a commercial product with restrictive licensing. Repositories that include the official font files may violate their license unless they clearly explain redistribution permission or are private. Designed specifically for user interfaces, Inter is often