Protocol Buffers are Google's data interchange format.

Send RPCs from Ruby using GRPC

MessagePack is a binary-based efficient object serialization library. It enables to exchange structured objects between many languages like JSON. But unlike JSON, it is very fast and small.

Vagrant is a tool for building and distributing virtualized development environments.

WebSocket protocol handler with pluggable I/O

Unicode Normalization Form support library for CRuby

A Ruby gem providing full access to the Facebook Zstandard (zstd) compression library via native C bindings. Includes all compression, decompression, streaming, and dictionary features.

We use this library at GitHub to detect blob languages, highlight code, ignore binary files, suppress generated files in diffs, and generate language breakdown graphs.

bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords.

EventMachine implements a fast, single-threaded engine for arbitrary network communications. It's extremely easy to use in Ruby. EventMachine wraps all interactions with IP sockets, allowing programs to concentrate on the implementation of network protocols. It can be used to create both network ...

A plain-Ruby implementation of GraphQL.

The fastest JSON parser and object serializer.

A fast, safe and extensible Markdown to (X)HTML parser

Use libsass with Ruby!

stackprof is a fast sampling profiler for ruby code, with cpu, wallclock and object allocation samplers.

Ruby bindings to https://github.com/joyent/http-parser and https://github.com/http-parser/http-parser.java

Bindings for your Ruby exceptions

jaro_winkler is an implementation of Jaro-Winkler \ distance algorithm which is written in C extension and will fallback to pure \ Ruby version in platforms other than MRI/KRI like JRuby or Rubinius. Both of \ C and Ruby implementation support any kind of string encoding, such as \ UTF-8,...

Ruby C bindings to the excellent Yajl JSON stream-based parser library.

Rugged is a Ruby bindings to the libgit2 linkable C Git library. This is for testing and using the libgit2 library in a language that is awesome.