Aryson PST Merge Tool is a reliable and advanced utility designed to help users merge multiple Outlook PST files into a single, organized PST file without affecting data integrity. The software allows users to combine emails, contacts, calendars, tasks, journals, notes, attachments, and other Outlook mailbox items safely and efficiently. Whether users are managing old archive PST files, backup files, or multiple Outlook profiles, this tool simplifies the entire process with its easy-to-use interface and powerful merging options.

The software offers different working modes, including Merge PST Files and Join PST Files. The Merge option combines similar folders like Inbox, Sent Items, Drafts, Contacts, Calendars, Tasks, and Notes into one unified folder structure. This helps users organize scattered Outlook data more effectively. The Join option allows users to combine multiple PST files into one PST while keeping every PST file as a separate folder. It preserves the original folder hierarchy and structure exactly as it existed in the source PST files.

Aryson PST Merge Tool supports merging both ANSI and Unicode PST files created in all Outlook versions, including Outlook 2000, 2003, 2007, 2010, 2013, 2016, 2019, Outlook 2021, and Microsoft 365 Outlook. Users can create a new PST file for the merged data or directly merge all items into an existing PST file. The software also supports merging large, old, oversized, and archived PST files without damaging the mailbox structure or causing corruption.

One of the major highlights of the software is its duplicate removal feature. It automatically detects and removes duplicate emails based on fields like To, From, Subject, and Date to keep the final PST file clean and optimized. Additionally, users can apply a Date Range Filter to merge only selected Outlook data from a specific time period. This helps reduce unnecessary data and keeps the output PST file more manageable.

The software also provides an option to remove email attachments during the merging process, which helps significantly reduce PST file size. To ensure mailbox security, users can apply password protection to the newly created PST file directly from the software interface.

Aryson PST Merge Tool maintains complete data integrity throughout the process. Folder hierarchy, metadata, timestamps, formatting, HTML properties, and embedded items remain unchanged after merging. The software works smoothly without requiring Microsoft Outlook installation, making it highly convenient for both personal and professional users.

Compatible with all major Windows operating systems, including Windows 11, 10, 8.1, 8, 7, and Windows Server editions, Aryson PST Merge Tool provides a secure and efficient way to manage multiple Outlook PST files in one place.