textextensions
A package that contains an array of every single file extension there is for text files
binaryextensions
A package that contains an array of every single file extension there is for binary files
istextorbinary
Determine if a filename and/or buffer is text or binary. Smarter detection than the other solutions.
webext-tools
Utility functions for Web Extensions, manifest v2 and v3
webext-events
High-level events and utilities for events in Web Extensions