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Tools for Removing Duplicate Contacts

This is a collection of tools used to remove duplicates from your Outlook Contacts folder. Some of these tools will also remove duplicates from other Outlook folders.

When the duplicates are the result of importing and all are duplicated, you can sort by the modified date field (you'll need to add it to the view), then delete all of the items with the same modified date and time. When the duplicates have assorted modified times, you'll need to delete the duplicates yourself or use one of the many duplicate remover tools to automate the process.

Some tools, such as Outlook Contacts Scrubber, will merge the data on duplicate contacts to one contact. This is useful if you are combining contact lists from different computers and the data on the contacts are not identical.  

Shared Address Books | Data Entry and Updating | Phone Number Updates | Online Services | Other Tools | Code and Form Samples | More Information

Tools in the Spotlight

Duplicate Contact Eliminator   Either delete duplicate contacts or move them to a separate folder. If you decide to purchase a Sperry Software utility, enter WD9BHK53 during checkout to receive a discount.
Duplicates Remover for Outlook   Delete duplicate contacts, notes, tasks, journal and calendar items in Microsoft Outlook folders and Exchange Server folders. Duplicates can be marked, copied or moved to any folder. It supports searching across the folders. Works with MS Outlook 2000/XP/2003 or later.

More Tools

1-Click Duplicate Delete   1-click solution to remove duplicate mails, contacts or calendar items. Merges contacts automatically, has an undo function and a configurable advanced mode.
Anti-Dupe for Microsoft Outlook   Remove unwanted Outlook duplicate records with Anti-Dupe for Microsoft Outlook add-in utility. Anti-Dupe for Outlook scans and deletes duplicate Outlook duplicate appointments, contacts, emails and tasks based on pre-determined criterion set by Anti-Dupe. Trial version available.
Duplicate Killer Merger   Duplicate Killer for Microsoft Outlook is a powerful plug-in for searching, managing and eliminating any type of duplicates (e-mails, contacts, tasks, calendar items (events, appointments, meetings), notes, journals) across all or chosen Outlook folders (including public folders). New Report Of Found Duplicates. The updated report with the list of found duplicates now provides more options to manage your duplicate items, and simplifies the process of resolving. Duplicate Merging dialog functionality has been dramatically improved, allowing you to quickly review and merge the fields you want. New properties to search added to Calendar and Contacts Wizard.
LBE Toolbox for MS Outlook   Multifunction utility to send individual messages to a list generated either from a text file or from criteria on the Contacts folder, remove large file attachments, remove duplicate contacts and messages, and perform a few other little chores.
OL LookForDuplicates   Find & remove duplicates with this open-source VBA-Script. Searches for duplicate entries of any type (calendar, contact, e-mail, notes, task, etc.) across folders in Outlook. Suspected duplicates are listed and can be moved to the Deleted Items folder.
Outlook Contacts Scrubber   Free utility (for up to 1000 records) to clean up duplicate contacts. Lets you make field-by-field choices of which data you want to retain and drag and drop the data. Merges categories and other keywords fields. Supports custom forms. Pro version available.
Outlook Duplicate Items Remover   Free tool for removing duplicate items from Outlook folders. ODIR recognizes duplicates in Contacts; Calendar; Tasks; Notes and Email folders. Using ODIR is very easy: select a folder and click the button Remove Duplicate Items. ODIR scans the selected folder for duplicates and MOVES all duplicates found to a subfolder ODIR_duplicate_items. Version 1.2
Outlook Duplicates Remover   Removes duplicate items from Calendar, Tasks, Contacts, Notes, and mail folders. Free.

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More Information

Several other kinds of tools related to contacts are listed on their own pages:

  • Contact Management Tools
  • Telephony Tools -- including utilities to copy contacts to mobile phones and to use contacts with Caller ID
  • Print Labels and Envelopes for Contacts
  • Start a Letter from an Outlook Contact
  • More Information:

  • Microsoft Outlook Contacts Issues
  • Distribution Lists
  • Combine duplicate contact items
  • Printing Microsoft Outlook and Exchange Address Books
  • Updating User Information in the Exchange Server GAL
  • Microsoft Outlook Contact Forms
  • Making Contact -- VBA code sample to reconnect imported journal items with related contacts listed in the Contacts box
  • Updated Jul 03 2009

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