This page contains utilities that automate the removal of duplicate appointments.
If the duplicate appointments are the result of importing, you can add the modified date field to the view and sort by it, then delete appointments based on the modified dates. When the cause of the duplicated appointments is PDA synchronization one of the utilities listed below is generally the easiest method to remove duplicates.
If you imported duplicates from the Outlook holiday file, see
To remove duplicate holidays from the Calendar folder in Microsoft Outlook
Many of these tools will remove duplicates from any Microsoft Outlook folder type, however, if you are looking for tools to remove duplicated contacts or mail items, you may want to look at the tools on the following pages as well. Note that some of the duplicate contact tools have the ability to merge duplicated contacts.
Tools in the Spotlight
Outlook Duplicate Killer is add-in for Microsoft Outlook. Find, merge and remove Outlook duplicates. Compare, assign category, flag and move duplicates to selected folders. Find and remove duplicate contacts, emails, calendar events, tasks and notes automatically. Merge Outlook contacts and other items. Manage duplicates in any Microsoft Outlook folder, including Microsoft Exchange and Public folders. Preview duplicate search results prior to processing. Use with Microsoft Outlook 2016, 2013, 2010, 2007, 2003, 2002
Deduper does exactly as the name suggests, it searches and removes all duplicates - including appointments, contacts, notes, tasks or emails.
The Duplicate Appointments Eliminator allows you to either delete all the duplicates or move them to a folder of your choice. Comparisons of two appointments (optionally) based on subject, location, start time, end time, body, categories, recurrences, and required attendees. Works with Exchange public folders or other shared folders and you can choose to operate on a single folder or select many folders at once. Works with Microsoft Outlook 2007, Outlook 2003, Outlook 2002 and Outlook 2000.
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. Supports all versions of Outlook, including Outlook 2007/2010. Version 2.6
1-click solution to remove duplicate mails, contacts or calendar items. Merges contacts automatically, has an undo function and a configurable advanced mode. Version 3.03 Now supports Outlook 2010 (both 32 and 64 bit).
Duplicate Remover will find, merge and remove duplicates in 3 steps using simple search wizard. Search duplicate items and merge Outlook duplicates automatically. We create a list of similar contacts for you to review, this way you will not delete sensitive contacts. Remove Outlook Inbox duplicates, duplicate Contacts and Calendar events and Junk contacts. Quickly clean up all your contacts. Automated inbox scanning and duplicates removal.
Accurate Outlook Duplicate Remover (AODR) can find and remove all duplicate Outlook items automatically. It quickly removes duplicates from Contacts, Calendar, Tasks, Notes and Email folders in one click. You can select any folder for duplicate Removing. It helps you to use your Outlook much more efficiently. Free for up to 200 contacts.
Delete Duplicates for Outlook deletes duplicate e-mails. Detect and remove duplicate messages, contacts, calendar items, tasks, journal entries and notes. Compare messages by content (Standard), by part of the content (Special) or by unique message-id's (Light). Compare attachments and/or embedded files, by name and/or by content. Compare duplicates across several mailboxes or in within the boundaries of individual mailboxes. Use Regular Expressions. Works with all Outlook versions, inc. Outlook 2010/2013 32 or 64-bit.
Kernel for Outlook Duplicates Remover tool is specifically programmed to remove duplicate items of MS Outlook permanently. The tool easily locates all duplicate Outlook items and provides option to either manage them or remove them permanently. The tool supports removal of duplicate items for all MS Outlook versions. Its free trial version can remove 10 items from each folder and expires after 30 days of download.
NoMoreDupes detects and removes all duplicated Outlook items both in an Outlook pst file, a public folder or in an Exchange account. It shows the found duplicates in a preview for the user to decide which duplicates to remove. You can move the duplicated Outlook items to your "Deleted Items" or to any other folder you specify. NoMoreDupes uses a special algorithm to detect the Outlook duplicates. This Outlook-Add-In works with all versions of Outlook, including Outlook 2010/2013 64bit.
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
ReliefJet Essentials for Outlook is a straightforward tool that consists of a large set of useful and easy-to-use tools for every Microsoft Outlook user. The product seamlessly integrates with Outlook and includes Outlook add-in, standalone and Windows command line applications. Utilities can be run in manual and automatic modes as well as on a scheduled basis. This major update includes new utilities and features as well as performance and reliability enhancements. Imports email messages from MBOX files into Outlook/Exchange folders with Internet headers. Converts MBOX files to MSG for EML.
Clean up your Outlook mailbox from unwanted and duplicate emails with Outlook duplicate remover tool. This software works as an Add-Ins in Outlook and removes duplicates as per different time span and scan criteria. Customized operations like Mark as Expired or Flag, Delete Permanently, Copy to folder and more are also a notable feature of this software.
Other calendar tools are on the following pages:
Calendar Tools for Schedule Management
Calendar Reminder Tools for Microsoft Outlook
Calendar Printing Tools for Outlook
Calendar Dates and Other Data for Outlook
Time and Billing Tools for Outlook Calendar
Meeting Productivity Tools for Outlook
For Group Calendar tools, see Maintaining a Group Calendar in Outlook.
Web Publishing tools: Publishing Microsoft Outlook Calendars on the Internet or an Intranet