Stellar PST Splitter

If you're dealing with massive Outlook PST files that slow everything down, Stellar PST Splitter could be the simple solution you need. Think of it as a handy tool that chops a huge, unwieldy PST file into smaller, more manageable pieces. You get to decide how to split it whether by a specific date range, when the file hits a certain size, by email ID, or even by individual folders. It’s a great way to stay organized and, just as importantly, to help prevent your PST files from getting corrupted due to their size.

One of the best things about this software is that it’s completely non destructive. It performs all its splitting magic on a brand new copy of your file, so your original PST remains perfectly safe and untouched. All the folder hierarchies and structures from your original file are carefully preserved in the new, smaller PSTs it creates. It works with a wide range of Outlook versions, from the older 2003 right up to 2016, and it’s fully compatible with Windows 10 down to Windows 7. If you have a whole batch of PST files to process, you can even set your preferences once and let the tool split them all automatically.

It's worth noting that the free trial version has some limitations you can only split by file size or use a basic "select and split" feature. To unlock all the options, like splitting by date or folder, you’ll need to purchase a license.

Overall, Stellar PST Splitter is a no fuss, reliable program. While its interface looks a bit old fashioned and its feature set is focused on one main task, it does that job very well. If your primary goal is to efficiently break down large Outlook data files without any fuss, this is a solid choice.