Cigati OST to PST Converter - 2026 Pricing, Features, Reviews & Alternatives

Cigati OST to PST Converter is an enterprise-grade email migration and conversion application that transforms Microsoft Outlook Offline Storage Table files into Personal Storage Table format and multiple other file types. It addresses the need to recover, migrate and archive inaccessible Outlook data while preserving data integrity across conversion operations. The solution supports environments ranging from large enterprises and managed service providers to small and mid-sized businesses and technical teams in fast-scaling startups.

The software offers conversion to various output formats including MBOX, EML, EMLX, MSG, CSV, HTML, MHTML, PDF, DOC, DOCX, DOCM and image formats such as PNG, TIFF, JPG and GIF. It processes single or multiple OST files concurrently through a multi-threaded engine that operates without queuing or throttling. A preview function displays mailbox contents including emails, contacts, calendars, tasks, notes and attachments prior to conversion. A date-range filter enables precise selection of items based on defined start and end dates. A duplicate removal feature identifies redundant messages by analyzing sender, recipient, subject and body fields to maintain clean archives.

The tool retains original folder structure, metadata and email formatting while supporting custom folder naming for consistent output across large-scale deployments. It facilitates direct migration to cloud-based services such as Office 365, Google Workspace, Gmail, Yahoo Mail, AOL, Hotmail, Yandex, IMAP servers, Zoho Mail and iCloud using modern authentication protocols. Contact extraction to VCF format and calendar export to ICS format supports cross-platform data portability. An optional attachment exclusion feature allows backing up email bodies without attachments for optimized storage management. The application handles encrypted OST files and processes oversized files without size limitations.

The desktop application runs on Windows eleven, Windows ten, Windows eight point one, Windows eight and Windows seven environments. It requires a modern multicore processor with at least eight gigabytes of memory and five hundred megabytes of free disk space for installation plus additional space for data storage. Microsoft Outlook installation is not required to view or preview OST contents and supported Outlook versions range from Outlook two thousand ten through Outlook two thousand twenty one. A trial version permits conversion of fifty items per folder for evaluation and the licensed version removes all limitations. The software generates detailed log reports for auditing and troubleshooting.