base64

encodes and decodes base64 as bytes or utf8

$cargo add base64

Official docs outline

Extra Credit builds an outline of base64's docs the first time your work uses it. Until then, start at the official documentation.

bitflags A macro to generate structures which behave like bitflags.
rand_core Core random number generator traits and tools for implementation.
rand Random number generators and other randomness functionality.
libc Raw FFI bindings to platform libraries like libc.
quote Quasi-quoting macro quote!(...)
proc-macro2 A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
windows-sys Rust for Windows
indexmap A hash table with consistent order and fast iteration.
thiserror-impl Implementation detail of the `thiserror` crate
thiserror derive(Error)
itertools Extra iterator adaptors, iterator methods, free functions, and macros.
cfg-if A macro to ergonomically define an item depending on a large number of #[cfg] parameters. Structured like an if-else chain, the first matchi