08-23-2025, 05:17 PM
For the best OST file converter I would recommend WholeClear OST Converter. I’ve used it personally and it is a reliable solution for converting OST files into multiple formats like PST, EML, MSG, MBOX and others. It maintains folder hierarchy, email properties and attachments during the conversion which is very important for keeping data integrity. One thing I liked is its simple interface no technical knowledge is required so even beginners can use it smoothly. It also supports batch conversion saving a lot of time when dealing with large OST files.