How do I change an Outlook OST file into a PST file using free options in 2025?

[JamesLafferty]

I personally recommend GoldyTools OST to PST Converter for converting OST files, as it is both advanced and extremely easy to use. The software is designed for all types of users, allowing anyone—even without technical experience—to operate it effortlessly.

GoldyTools offers both bulk OST file conversion and single-file export, giving you complete flexibility based on your needs. The demo version allows you to convert the first 25 items from each folder, so you can test its performance before upgrading.

The export options include several advanced features that make the entire process smoother, more efficient, and highly user-friendly. Overall, it’s an excellent tool for fast and reliable OST to PST conversion.

 

[Kevin Hart]

If you're looking for a reliable solution to convert OST files to PST format in bulk, the OST to PST Converter Software is an excellent choice. This tool provides a fast and accurate way to convert OST data to PST while ensuring the original folder hierarchy and data structure remain fully intact.

The software allows you to export all OST mailbox items—including emails, contacts, journals, tasks, notes, and more—directly into Outlook PST format. In addition to PST, it also supports multiple export formats such as MBOX, EML, EMLX, HTML, CSV, and MHTML, giving you the flexibility to choose the format that best suits your needs.

Overall, it’s a comprehensive and efficient solution for users who need secure, bulk OST file conversion.