ZaapIT - Mass Merge, auto merge, duplicates cleanup, bulk edit, bulk update, bulk delete , mass lead convert
CiviCRM - A Constituent relationship management for the Civic Sector
Duplicate Check - Start creating data happiness. Find, merge and prevent duplicate records in your Salesforce Organization.
Odoo CRM - Open Source CRM
Apsona for Salesforce - Apsona for Salesforce is an add-on application for Salesforce to manage the data.
biznessmaker - The free all-in-one solution for your company.