
Stellar
Aid4Mail
MigrationWiz
Stellar Repair for Exchange
Kernel for Exchange Server Recovery
Cloud Email Conversion
EdbMails EDB to PST Converter
Enterprise email migration, PST conversion, and forensics tools for Windows & macOS.

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Website, pricing, platforms and company facts side by side.
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| Website | prismmigration.com | opalstack.com |
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| Platforms | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Prism Migration provides enterprise-grade, standalone email migration, mailbox backup, and forensic recovery software. Designed for SysAdmins, MSPs, and legal compliance teams, Prism tools operate 100% offline without requiring Microsoft Outlook or Exchange Server installations. Key capabilities...
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What each product offers, as listed by its team.


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An editorial look at what each product does well and who it suits.


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As answered by people managing Prism Migration and Opalstack.
Prism Migration's answer
Enterprise SysAdmins, MSPs, legal eDiscovery teams, and business users migrating between Microsoft 365, Google Workspace, and offline email archives.
Prism Migration's answer
Prism Migration is built for modern IT environments — running 100% offline with native Apple Silicon (M1-M4) and Windows binaries without requiring Microsoft Outlook installed.
Prism Migration's answer
Unlike legacy converters that hang on 50GB+ files, Prism handles massive mailboxes with multi-threaded streaming, ISO 19005-1 PDF/A compliance, and direct OAuth 2.0 cloud ingestion.
Prism Migration's answer
Prism Migration's answer
Java 21 JVM runtime, C++ native MAPI b-tree parser, native Apple Silicon ARM64 binaries, JavaFX modular UI, and Microsoft Graph API / Google OAuth 2.0 direct cloud streaming.
Prism Migration's answer
Prism Migration was founded by enterprise systems engineers who were frustrated with bloated, crash-prone legacy email migration tools. When modern Outlook removed native PST export capabilities, we engineered a memory-safe, 100% standalone engine that runs natively on modern Windows and Apple Silicon Macs without requiring Microsoft Outlook.
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