Drop file here. 150 MB maximum file size.
A PST file is a storage file containing personal information used by Microsoft Outlook and Exchange. It may contain e-mail files, contacts, addresses and other data.
An OTP file is a program included in Apache OpenOffice (formerly OpenOffice.org) that was created by Impress. Includes a master slide as well as a content slide with text, images, shapes, multimedia content, transition effects and other slide elements. The OTP files are used for similarly stylized presentations.
Access powerful and secure free online PST tools to convert, view, edit, merge, split, and compare PST files β all without installing any software. Our tools support the .PST (Outlook Personal Information Store File) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your PST files directly from your device with ease.
Chose or drag & drop your PST file, click Convert to OTP, and download the OTP file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert PST to OTP in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert PST to 100s of file formats, without any limit, registration and downloading, 100% free and online PST converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
About FileProInfo: FileProInfo is a trusted platform dedicated to file formats and software programs. We provide accurate technical details, easy-to-use navigation, and advanced search capabilities to help users explore, manage, and convert file types efficiently.
Listed file converters are from the wide range of online file converter.
These are the most polular file/document converters based on the user's review and usage on the FileProInfo.