OST to PST Converter is a professional utility designed to convert Outlook OST files into accessible PST format. It supports recovery of emails, contacts, calendars, notes, journals, and attachments from orphaned, encrypted, corrupted, or oversized OST files. The tool ensures full data integrity and maintains folder structure, metadata, and formatting during conversion. It supports batch processing, making it ideal for enterprise users handling multiple mailboxes. With an intuitive interface and no requirement for Outlook installation, it provides a seamless experience for both technical and non-technical users. It is compatible with all Outlook versions, including Outlook 2021 and Microsoft 365, and works across Windows and macOS platforms.