https://hiddentools.dev/ 118 (find any tool you need in here)

https://caniuse.com/ 50 (creating a website it tells you which features will work on which browsers)

https://devhints.io/ 48 (you can literally find the documentation of any particular function or code in a sec)

https://bundlephobia.com/ 40 ( This one can tell you the size of the package you need.)

https://www.urbandic…php?term=godelf 59 (real-world unsafe variable names.)