Package cors handles cross-origin HTTP requests (CORS).

Package crc provides utility function for cyclic redundancy check algorithms.

Package fileutil implements utility functions related to files and paths.

Package flags implements command-line flag parsing.

Package httputil provides HTTP utility functions.

Package idutil implements utility functions for generating unique, randomized ids.

Package ioutil implements I/O utility functions.

Package logutil includes utilities to facilitate logging.

Package netutil implements network-related utility functions.

Package osutil implements operating system-related utility functions.

Package pathutil implements utility functions for handling slash-separated paths.

Package pbutil defines interfaces for handling Protocol Buffer objects.

Package runtime implements utility functions for runtime systems.

Package testutil provides test utility functions.

Package netutil provides network utility functions, complementing the more common ones in the net package.

Package types declares various data types and implements type-checking functions.

Package wait provides utility functions for polling, listening using Go channel.