The Ruby Toolbox - Know your options!

activerecord

56.09
Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.
 Popularity
Downloads
122,067,155

orm_adapter

6.93
Provides a single point of entry for using basic features of ruby ORMs
 Popularity
Downloads
29,352,864
Stars
188
Forks
82
Watchers
9

sequel

5.38
The Database Toolkit for Ruby
 Popularity
Downloads
14,448,203
Stars
3,445
Forks
690
Watchers
104

squeel

1.43
Squeel unlocks the power of Arel in your Rails application with a handy block-based syntax. You can write subqueries, access named functions provided by your RDBMS, and more, all without writing SQL strings. Supporting Rails 3 and 4.
 Popularity
Downloads
1,816,477
Stars
2,336
Forks
209
Watchers
60

dm-core

1.14
DataMapper core library
 Popularity
Downloads
2,879,746
Stars
783
Forks
162
Watchers
27

rom

0.66
Persistence and mapping toolkit for Ruby
 Popularity
Downloads
128,108
Stars
1,529
Forks
113
Watchers
87

og

0.03
Object Graph (Og) is a state of the art ORM system. Og serializes standard Ruby objects to Mysql, Postgres, Sqlite, KirbyBase, Filesystem and more.
 Popularity
Downloads
69,549