5 Best Outlook PST Repair Tools 2021

  • Written By Eric Simson

  • Updated on January 31, 2021

  • Min Reading 6 Min

Summary: Read the blog to explore the 5 Best Outlook PST Repair Tools in 2021, that you can rely upon to repair corrupt Outlook data file (.pst).
1.  Stellar Repair for Outlook: “Powerful PST repair tool recommended by users and MVPs to fix severely corrupted, large-sized PST file and recover all the file data.”
2. Aryson Outlook PST Repair: “Another great utility that guarantees to repair PST files up to 80 GB size.”
3. Voimakas Outlook PST Recovery: “Repairs corrupted PST files and successfully restore email items and attachments from the file.”
4. Cigati Outlook Email Recovery: “Quickly repair and recover emails from corrupt PST File.”
5. DataNumen Outlook Repair: “This PST repair tool guarantees to recover PST files as large as 16777216 TB.”
You can download the free trial version of Stellar Repair for Outlook software covered in this post from the following link:
Free Download Stellar Repair for Outlook

As an Outlook user, you may have faced issues such as sluggish performance, freezing and unexpected crashing of the application. There could be various causes of these problems, the most common being a large-sized PST file which may further get corrupt due to a sudden system shutdown.

You may refer the detail study to know more about outlook PST Errors.

What you should do to repair a corrupt PST file?

While there is no dearth of PST repair software, choosing the right tool is crucial to achieving the desired results. To help you out, we’ve compiled a list of 5 best PST repair tools that are worth trying.

NOTE: Before running any PST file repair tool, make sure to take a backup of your PST files.

List of 5 Best Outlook PST Repair Tools:

1. Stellar Repair for Outlook

The First best recommended pst repair tool, Developed by data recovery experts with over 25 years of experience, Stellar Repair for Outlook is a highly trusted PST repair tool recommended by MVPs for repairing severely corrupt PST files.

Also, read IBTIMES Tech Magazine’s interesting expert review on Stellar Outlook PST recovery tool.

The USP of this software is its rich and intuitive GUI that ensures a smooth recovery process for users without technical assistance. The software can help you repair damage caused to a PST file due to improper file sharing on a shared network, disrupted PST compaction, and corruption in the PST file header as well as the operating system.

Using Stellar Repair for Outlook to repair PST file

Key Features

  • Repairs corrupt or damaged PST file of any size
  • Retrieves data from password-protected and encrypted PSTs
  • Recovers permanently deleted emails, attachments, contacts, calendars, journals, tasks, and more
  • Supports selective recovery of items in a PST file
  • Saves recovered mailbox data in multiple file formats, including PST, MSG, EML, RTF, PDF, and HTML
  • Allows to save and load scan information of PST file
  • Rich and intuitive GUI that nearly any user can understand and use
  • The Technician version of the software helps compact and split the repaired PST file
  • The Technician version directly exports the repaired PST to Office 365
  • Supports Outlook for Office 365, MS Outlook 2019, 2016, and earlier versions


  • The repair process can be a bit slow, depending on the extent of corruption and PST file size

2. Aryson Outlook PST Repair

The second best PST repair tool in the list is Aryson Outlook PST Repair. The software not only helps recover corrupt data but also possesses the ability to recover deleted emails. It is highly recommended for its efficient recovery of emails and documents lost due to computer crash or virus infection. 

Using Aryson Outlook PST Repair software to repair PST file

Key Features

  • Repairs corrupt PST file up to 80 GB
  • Restores all the mailbox items, including emails, calendars, contacts, journals, etc.
  • Recovers encrypted and password-protected PST files
  • Recovers deleted emails and attachments
  • Saves recovered files in multiple file formats, including DBX, MSG, EML, & MBOX
  • Provides a preview of the recovered files before saving them
  • Option to recover selected mail items
  • Provides snapshot feature to save and load scan
  • Exports MS Outlook email messages to Windows Live Mail


  • The software can be a bit complex for novices
  • Does not support MS Outlook 2019

3. Voimakas Outlook PST Recovery

Voimakas Outlook PST Recovery is a new software, and so the name may sound unfamiliar to you. But, the software has stood out as an efficient Outlook PST file repair software. It helps repair corrupt PST files and saves the restored Outlook PST emails into new or existing readable PST file. The software is compatible with Outlook 2016 and lower versions.

Using Voimakas Repair PST Recovery software to repair PST file

Key Features

  • Restores all the PST file data, including emails, attachments, contacts, tasks, calendar, and notes
  • Recovers permanently deleted emails
  • Recovers password-protected files
  • Supports splitting PST file into multiple PST files
  • Restores multiple PST file, including email attachments
  • Allows saving selected items
  • Exports PST file data to live Exchange server and Office 365 mailbox
  • Provides save and load recovery snapshots
  • Saves recovered PST file in multiple formats such as PST, VCARD, VCAL, MSG, EML, etc.
  • Allows to preview recovered emails prior to saving them


  • Does not support Outlook version 2019
  • It is significantly slower. It takes a lot of time to repair corrupt PST files over 100 MB
  • Does not support repairing of encrypted PST files

4. Cigati Outlook Email Recovery

As the name suggests, the Outlook Email Recovery tool from Cigati helps repair and recover Outlook emails from corrupt PST files. It supports the recovery of emails and all the mailbox contents such as email messages, contacts, calendars, etc. This PST recovery tool can also help restore email attachments.

Using Cigati Outlook Email Recovery software to repair PST file

Key Features

  • Recovers corrupt or damaged PST files
  • Recovers deleted emails or PST data
  • Restores email attachments
  • Supports recovery of password-protected or encrypted PST files
  • Saves recovered Outlook PST emails into multiple file formats, such as PST, DBX, MBOX, MSG, and EML
  • Provides a free preview of Outlook emails before recovery
  • Simple and intuitive interface
  • Helps split large PST file into smaller PSTs


  • The scanning process can be time-consuming
  • No support is available for MS Outlook 2019 version
  • Does not support selective recovery of emails and mailbox content

5. DataNumen Outlook Repair

DataNumen Outlook Repair is another reliable and effective PST repair tool that can be used to repair and recover PST file of any size. Also, it can restore each and every mailbox item from corrupt PST files, including mail messages, calendars, contacts, appointments, meeting requests, distribution lists, etc. The tool helps recover emails in three file formats, including plain text, RTF and HTML.

Using DataNumen Outlook Repair software to repair PST file

Key Features

  • Supports recovery of PST files as large as 17179869184 GB
  • Supports splitting of large-sized PST files into smaller ones
  • Recovers permanently deleted Outlook items, including emails, attachments, folders, posts, calendars, appointments, etc.
  • Recovers password-protected PST files
  • Supports converting PST file format to Office 365 format
  • Can perform batch conversion of corrupt PST files
  • Supports Outlook 2019 and earlier versions


  • Limited file formats supported
  • Does not support the selective recovery of deleted emails
  • No option to preview the repaired PST files
  • The software interface is not user-friendly
  • The software takes a long time to find and repair PST file of 4 GB

A Comparison Chart to Help You Decide Which Tool is Right for You

Compare and select best pst recovery software


Corruption in large-sized Outlook data files (.pst) can lead to inaccessibility of emails, attachments, calendars, address book, etc. While there are several PST repair tools available in the market, choosing the one that best suit your needs can be a difficult task. To help you out, we’ve researched and compiled a list of 5 Best Outlook PST Repair Tools in 2021. Make sure to carefully read the pros and cons of each tool to make an informed decision. If you still have doubt about any software, all the 5 PST repair tools are free to download. So, download the software and evaluate yourself which one best suits your needs.

Also Read

Reviews of Stellar Repair for Outlook

Most Recommended PST Repair Tool

5 Common Outlook Problems

How to fix Outlook Not Responding

  1. Adam Gunter January 7, 2020
    • Eric Simson January 7, 2020
  2. Sri S Mani December 31, 2019
    • Eric Simson December 31, 2019

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