BSQLinjector is an easy to use Blind SQL Injection tool in Ruby, that uses blind methods to retrieve data from SQL databases. The download is below.
The author recommends using the “--test” switch to clearly see how configured payload looks like before sending it to an application.
What is Blind SQL Injection?
Blind SQL Injection is a type of SQL Injection (SQLi) attack that asks the database true or false questions and determines the answer based on the application’s response.