base58-alphabets - base58 encoding / decoding numbers, hex or binary strings (incl. leading zeros) with bitcoin or flickr notation / alphabet

digest-lite - crypto(graphic) hash functions / classes - Digest::KeccakLite (512bit, 256bit, etc), Digest::SHA3Lite (512bit, 256bit, etc) in "100% pure" ruby "lite" scripts, that is, without any c-extensions and with zero-dependency

fast_xs provides C extensions for escaping text. The original String#fast_xs method is based on the xchar code by Sam Ruby: * http://intertwingly.net/stories/2005/09/28/xchar.rb * http://intertwingly.net/blog/2005/09/28/XML-Cleansing _why also packages an older version with Hpricot (patches su...

Hunting down random test failures can be very very difficult, sometimes impossible, but minitest-bisect makes it easy. minitest-bisect helps you isolate and debug random test failures. If your tests only fail randomly, you can reproduce the error consistently by using `--seed <num>`, but what t...

Adds Capybara feature tests in Minitest and Rails.

Looksee lets you examine the method lookup path of objects in ways not possible in plain ruby.

Text::Hyphen is a Ruby library to hyphenate words in various languages using Ruby-fied versions of TeX hyphenation patterns. It will properly hyphenate various words according to the rules of the language the word is written in. The algorithm is based on that of the TeX typesetting system by Dona...

abi2ruby - generate ready-to-use (blockchain) contract services / function calls for ethereum & co. via application binary inferfaces (abis)

abi2sol gem - command-line tool for application binary interface (abi) to solidity (contract) source code generation for Ethereum & Co.

abibase - command line tool / helper to manage application binary interfaces (abis)

abidoc - application binary interface (abi) documentation generator for Ethereum & Co. (blockchain) contracts

abidump gem - command-line tool to dump / pretty print or (re)format application binary interfaces (abi) for Ethereum & Co.

"high-level" all-in-one umbrella quick starter gem for easy installation & usage application binary interface (abi) code or doc(umentation) gen(eration) for ethereum & co.

alphabets - alphabet (a-z) helpers incl. unaccent, downcase, variants, and more

base32-alphabets - base32 (2^5) encoding / decoding in 5-bit groups with kai, crockford or electrologica notation / alphabet

blockchain-lite - build your own blockchain with crypto hashes - revolutionize the world with blockchains, blockchains, blockchains one block at a time

centralbank - print your own money / cryptocurrency; run your own federated central bank nodes on the blockchain peer-to-peer over HTTP; revolutionize the world one block at a time

crypto-lite - cryptographic secure hash functions and public key signature algorithms made easy

cryptoquotes - incl. oracle tool to get a random crypto quote of the day on the command line - on the new new 'in math we trust' ponzi economics - on get-rich-quick blockchain secrets - on bitcon maximalists, scammers, morons, clowns, shills & bagHODLers and more

date-formats - read / parse and print dates (and times) from around the world