1. GroupDocs Products
  2. Conversion App
  3. Convert OST to PSB

OST to PSB converter

Convert OST to PSB online from any device with a free converter.

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About Conversion app

Convert your OST files online. You can convert your OST documents from any platform (Windows, Linux, macOS). No registration needed. Just drag and drop your OST file on upload form, choose the desired output format and click convert button. Once conversion completed you can download your PSB file.

You even can perform more advanced conversions. For example you can convert password protected documents. Just expand LoadOptions and enter the password of your file. Or you can add a watermark to the converted PSB file. Expand the ConvertOptions and fill the fields for watermarking.

You can convert your OST documents from anywhere, from any machine or even from a mobile device. The OST converter is always available online and is completely free.

  • Convert WORD to PDF, EXCEL to PDF, PDF to WORD, POWERPOINT to IMAGE, VSDX to PDF, HTML to DOCX,EPUB to PDF, RTF to DOCX, XPS to PDF, ODT to DOCX, ODP to PPTX and many more document formats
  • Simple way to instant convert OST to PSB
  • Convert OST from anywhere - it works on all platforms including Windows, MacOS, Android and iOS
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How it works

How to convert OST to PSB

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

Questions & Answers

OST

Outlook Offline Storage File

OST or Offline Storage Files represent the user's mailbox data in offline mode on the local machine upon registration with Exchange Server using Microsoft Outlook. It is automatically created on the first use of Microsoft Outlook upon connectivity with the server. Once the file is created, the data is synchronized with the email server so that it is available offline as well in case of disconnectivity from the email server.

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PSB

Adobe Photoshop Image File

Adobe Photoshop saves files in two formats. Files having 30,000 by 30,000 pixels in size are saved with PSD extension and files larger than PSD upto 300,000 by 300,000 pixels are saved with PSB extension known as “Photoshop Big”. More specifically, PSB files can be as large as 4 EB (over 4.2 billion GB) with images that have a height and width of up to 300,000 pixels. PSDs, on the other hand, can be at maximum upto 2 GB and image dimensions of 30,000 pixels. PSB is also known as large format size for Photoshop and supports all the Photoshop features like layers, effects and filters.

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Other Supported Conversions

You can also convert OST into many other file formats. Please see the complete list below.

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APIs available

Convert popular document and image file formats in your app. The GroupDocs.Conversion APIs are available for .NET, Java, and many other platforms and languages.

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