Name: BrandSnag
Function: Name Availability Checker
Best For: Best Overall
Basic Pricing: Free
Link: brandsnag.com

Name: namecheck.com
Function: Name Availability Checker
Best For: Name Search
Basic Pricing: Free
Link: namecheck.com

Name: Namecheckr
Function: Name Availability Checker
Best For: Ease To Use
Basic Pricing: Free
Link: namecheckr.com