Kryptonita is a Ruby gem that provides a lot of functions for hashing, encrypt and decrypt.

fast method tracing

Ruby class to read large files on 32 bit Linux platforms.

Efficient lazy object proxy

General utility for debugging ruby apps.

Levenshtein ruby lib with unicode support

Ruby bindings for Libarchive. This is a fork of the libarchive-ruby gem.

Native library (based on hogliux/bomutils) to access Apple BOM (Bill of Materials) files.

Ruby bindings for CDB Constant Databases.

Ruby bindings for libdeflate.

libjpeg interface for ruby

Ruby bindings for MediaInfo using libmediainfo.so

Easy-to-use, secure-by-default password hashing library

libpng interface for ruby

Ruby bindings for libproxy.

This is a C extension for libpuzzle to find similar pictures with easy API.

A Ruby extension implementing the R-tree spatial-index of Guttman-Green.

Ruby bindings for librsync signature generation, patch generation, and patch application methods.

libsixel is a lightweight, fast implementation of DEC SIXEL graphics codec

Snappy, a fast compressor/decompressor (courtesy of Google)