A list of useful and relatively mature crates for various tasks, for you need a de-facto-standard way of doing stuff.

Basically, if there's an obvious answer to a common "how do I do X" question, or if someone might ask "Why isn't X in std?", X should go here. This shouldn't become awesome-rust, we have awesome-rust for that.

Another excellent source is stdx, check it out.

Rules:

• At most two crates that do more or less the same thing
• If there's no halfway decent docs and readme, leave it out
• If it's not a go-to solution for the task it's doing, leave it out
• If you're not sure, leave it out

If you have a suggestion, amendment, flames, or other communication, open an issue. Or better, a pull request.

To do: Short descriptions, links to crates, note whether or not it is pure rust, better tables, link to arewe*yet...

Async I/O

• futures-rs
• mio
• tokio

Bit mongling/endianness stuff

• bitflags
• byteorder

Command line parsing

• clap
• docopt

Compression

• bzip2
• flate2
• zip

Control flow abstraction

• itertools

Cryptography

• crypto
• ring

Data structures

• arrayvec
• ndarray
• vec_map
• phf
• typemap
• petgraph
• smallvec

Databases

• diesel

File/directory stuff

• seek_bufread
• tempdir

Graphics

Low-level

• gfx
• glium

Higher-level

• conrod?
• imgui-rs?

Windowing/context creation

• glfw
• glutin
• sdl2

Font loading/rendering

• rusttype

Misc

• genmesh

Image loading/saving

• image

Kitchen sink

• monster
• odds

Languages

Lua

• lua

Other

• dyon
• gluon

Logging

• log
• slog

log backends (needs sorting through)

• emit
• env_logger
• fern
• ulog

Other stuff:

• log
• loggerv
• mowl
• simplelog

Math

• num (traits, complex/bigint/rational number types, iterators, all sorts of nice stuff)

Numerical traits/generics

• try_from

Vector algebra/computer graphics/physics

• nalgebra
• cgmath

Misc

• noise

Memory management

• typed_arena

Misc stuff

• semver

Parsing/formatting

JSON

• json
• serde_json

TOML

• toml

Parser combinators

• combine
• nom

Parser generators

• lalrpop

Platform-specific interfacing

Windows

• winapi

Linux

Mac

Misc

• num_cpus

Parallelism

• threadpool
• thread-scoped
• rayon

Random numbers

• rand

Reference/lifetime mongling

• lazy_static
• owning_ref
• rental
• thread_local

Serialization

• rustc_serialize
• serde

Sound

Decoding

Playing

• alto
• ears

Text/string/templating stuff

• handlebars
• regex
• symtern
• tera

Text/terminal user interface

• rustyline
• termion

Time

• chrono
• time

Web stuff

HTTP libraries

• hyper

Client

• reqwest

Web frameworks

• iron
• pencil

Misc

• cookie
• formdata
• idna
• url
• mime
• uuid