1. Aspose.Email
  2. Applications
  3. Conversion
  4. OST to PST
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Service Free Free (registered users) Premium Business
File Size Limit 1 Mb 5 Mb 50 Mb Custom
Batch Files Max Count 2 10 50 Custom
Uses Per Day 5 10 Unlimited Custom
Ad Free App Experience


Fast and simple OST to PST converter online

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Free online OST to PST converter. If your application is not compatible with OST files, you can always convert it to PST. Just use our app. Aspose has large expertise in working with files of various formats. You can be sure that we will carefully transfer data from one format to another with the least possible loss and distortion.
Our OST to PST converter uses cloud storage to store the conversion results. You can immediately download the converted file, send it by email, or simply copy the link to it. But keep in mind that your files are only stored in the cloud for 24 hours!
We do not contribute in any way to the dissemination of links to your files, we do not provide them to third parties, etc. However, if you want to convert a file containing confidential information, we recommend that you use our other products that are available offline or equipped with a greater degree of protection for your data.
There are no limitations on conversions except for the size of your files, a few hundred megabytes, but even that will be enough for most conversion tasks. In addition, you can upload multiple OST files. In this case, the OST to PST application will pack generated PST files in a ZIP archive.
After you convert the file from OST to PST, in addition to the link to download the result, you can also fill out a feedback form. Please take a look at the conversion results and let us know if you want any extra features or find any bugs.
Our libraries that we use to convert OST to PST contain a lot of fine-tuning options. We try to find a configuration suitable for most users. With your feedback, we can improve our understanding of your needs and continue our optimizations.
We are constantly working on improving our applications, be sure to bookmark this page to check it out later.

How to convert OST to PST

  1. Click inside the file drop area to upload OST or drag & drop them.
  2. Click on Convert button. Your OST files will be uploaded and converted to PST format.
  3. Download link of converted PST files will be available instantly after conversion.
  4. Check the OST to PST conversion results and send your feedback.
  5. You can also send a link to the results to your email address.


How do I change a OST file to a PST?

Open online Aspose OST to PST converter. Upload your OST file and click the "CONVERT" button. Download the converted PST file.

Can I convert a batch of OST files to PST format?

Just open the OST to PST converter app. Select all files you want to convert and click the "CONVERT" button. All converted files will be packed to a ZIP archive and will be available to download.

Where can I find more information about the application?

If you have questions about the functionality of the application, or found issues, or need some new functionality, please start a discussion in our free support forum.
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