Repair corrupt or damaged PST file to restore emails for FREE
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Repair unlimited files-no size limit-with Desktop Software
Click on 'Repair PST Online' button to sign-in and upload your mailbox to our secure server.
Your PST file is analyzed in Fully Automated & Safe Environment with no human touchpoints.
Preview & Download your repaired PST file. All data is erased after 24-hours for Security & Privacy.
When a PST file gets corrupted, Outlook may fail to open the file or display an error, “Outlook data file cannot be opened”. This can prevent you from accessing emails, attachments, contacts, calendars, and other mailbox items stored in the PST file. In such cases, you can use Stellar Online PST Repair service that can repair the corrupted PST file and restore the mailbox data.
ScanPST or Inbox Repair Tool can diagnose and fix certain errors in the PST file. However, it may freeze or crash during the repair process or even fail to repair the file. In such situations, you can consider using Online PST Repair service to repair the corrupted PST file and recover all the mailbox items without any hassle.
If your Outlook is freezing, or crashing when accessing emails, corruption in the PST file can be one of the possibilities. You can use ScanPST to repair the file. However, it may not be able to repair a severely damaged file. As an alternative, you can use Online PST Repair tool by Stellar. It repairs the PST file irrespective of the level of corruption.
An oversized PST file can cause various problems in Outlook. Older ANSI PST files had a much lower size limit while the Unicode PST files have a default limit of 50 GB, depending on the Outlook version. As the file grows in size, Outlook becomes slower or frequently crashes. Such frequent crashes can lead to PST file corruption, which can be resolved with the help of Stellar Online PST Repair.
Although it is less common, problems with storage drive/device can also affect the PST files. If the HDD or SSD, where your PST file is stored, has developed bad sectors, then your PST file becomes corrupted and throws an error message, “Outlook data file cannot be accessed”. In such situations, you can use powerful tools, like Stellar Online PST Repair to get back access to your PST file data.
Stellar Online PST repair service ensures complete data integrity and preserves the original structure during the repair process. It restores emails and all mailbox items, including contacts, calendars, attachments, notes, and journals, from corrupted PST files. Once the repair is completed, you are notified to download the repaired PST file on to your computer. Online PST repair service also provides you the choice to preview mailbox folders and item count in the browser.
Start with Free plan - upgrade to Premium to repair larger files.
We have answers to the most common questions that our users ask.
Stellar Online PST Repair service uses a secure connection to upload and process your corrupt PST files in a fully automated environment with no human touchpoint. Uploaded and repaired files are automatically and permanently deleted from our servers within 24 hours (for the Free plan) and 48 hours (for the Premium plan).
Yes. You can repair a PST file of up to 500 MB for free using Stellar Online PST Repair. With the Premium plan, you can repair PST files of up to 5 GB. For larger PST files (over 5 GB), you can use the Desktop Software, which has no file-size restriction.
Yes. The Online PST Repair service by Stellar does not require Microsoft Outlook to be installed. The PST repair process runs in your browser, with no additional software required on your system.
No. The online service processes one PST file at a time. You can repair additional PST files one after another, subject to your plan's file-size limit. If you need to repair multiple PST files, the Desktop Software is a better fit.
The time to repair the PST file depends on the file size, extent of corruption, and internet speed. In most cases, the repair process is completed within 15 minutes, while larger or severely corrupted PST files may take longer.
Choose Online PST Repair service if you want to repair PST files of less than 5 GB without the need to download or install any software. The process runs in your browser, and you can save the repaired PST file on your system. If you need to repair larger or multiple PST files, the Desktop Software is the better option. It performs the repair process locally on your system.
You can save the repaired PST file to any desired location on your system. By default, the downloaded file is saved in your Downloads folder.
Yes. You can preview the recovered folder structure and item counts before downloading the repaired PST file.
Yes. Stellar Online PST Repair can repair password-protected PST files and restore the mailbox data.
Stellar Online PST Repair service can efficiently repair corrupt PST files and recover mailbox items, including emails, attachments, contacts, calendar entries, tasks, notes, and journal entries, while preserving the original mailbox hierarchy.
Stellar Online PST Repair works with major modern browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari.
Stellar Online PST Repair service supports both ANSI and Unicode PST formats. It can repair PST files created in all versions of Microsoft Outlook from 2003 to 2024.
Stellar Online PST Repair can repair PST files that get corrupted due to issues such as Outlook crashes or improper system shutdowns, CRC errors, disk errors, bad sectors, malware or virus infections, and synchronization conflicts. It can also analyze PST files that are inaccessible or cannot be opened in Outlook.
Yes. The online PST repair service by Stellar supports PST files created in all versions of Classic Outlook from 2003 up to 2024, including both ANSI and Unicode formats.
Stellar offers a range of online services that you can use for free.
