PST Converter

About This Tool

The PST Converter ingests Outlook PST files and exports contents to portable formats such as EML, MBOX, and PDF/HTML representations for archival and migration needs. It preserves mailbox hierarchy, message headers, dates, flags, categories, and all attachments. It supports batch processing for large archives and operates without requiring Outlook installed. This makes it suitable for IT admins, data migration teams, and compliance officers who need portable archives for downstream mail systems or long-term preservation.
The underlying workflow reads PST structures via a MAPI-based model, maps each item to the target format with high fidelity, and retains per-item metadata and folder paths. Emails are exported with MIME-compliant headers and proper encoding; attachments can be placed in a parallel tree if requested. Time zones are normalized to UTC unless a locale is specified. Output is organized by source folder and can be consumed by downstream migration tools, eDiscovery workflows, or archival repositories.
Use cases include migrating to Exchange Online, Google Workspace, IMAP-based servers, or offline archives for regulatory compliance. The tool differentiates itself through robust error handling, support for password-protected PSTs with credentials, and scalable processing that minimizes downtime during migrations. It is designed to meet security, privacy, and integrity requirements in regulated environments.
Core features cover PST ingestion, item-level export, folder structure preservation, metadata retention, and optional filtering or deduplication. This combination reduces migration risk, speeds up archiving projects, and provides auditable exports for legal or compliance purposes.

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