Opera Mail MBS File Converter by Univik

Opera Mail MBS File Converter by Univik converts MBS email archive files from Opera Mail directly into PDF, EML and other standard formats — no Opera Mail installation required, no internet connection and no uploading your private emails to any cloud service.

Download: https://univik.com/file/converter/mbox.html

Opera Mail stores emails in MBS format — a proprietary archive file unique to Opera's discontinued email client. When Opera discontinued its built-in mail client in 2013, millions of users were left with MBS archives and no supported tool to open, read or convert them. MBS files are not recognised by any major email client, making this converter the only practical path to recovering that email data.

MBS is a dead format. Opera Mail is no longer developed or supported. Users who still hold MBS archives from old Opera installations have no native way to access their email history without this converter. Converting MBS to PDF creates permanent readable archives. Converting to EML opens the emails in any modern client. Converting to PST imports the full archive into Microsoft Outlook.

Batch MBS Conversion: Converts every email in one or multiple MBS archives in a single pass.

Multiple Output Formats: Export to PDF, EML, PST, MSG and more — choose the format that fits your workflow.

Preserves Email Metadata: Sender, recipient, date, subject, CC and BCC fields retained in every output file.

Attachment Recovery: Embedded attachments are extracted and saved alongside converted email output.

Searchable PDF Output: All text is fully selectable and searchable — not scanned images.

No Opera Mail Required: Works directly from MBS files on disk. Opera Mail does not need to be installed.

Fully Offline: No emails are uploaded to any server at any stage.

Supports Legacy Archives: Handles MBS files from all Opera Mail versions including Opera 12 and earlier.

Users recovering email history from retired Opera Mail installations.

IT administrators migrating legacy Opera Mail deployments to modern email platforms.

Legal and compliance teams preserving old Opera Mail records as court-admissible PDF documents.

Individuals who archived personal emails in Opera Mail before the client was discontinued.

Digital archivists recovering correspondence from legacy Windows machines.

Input: MBS (Opera Mail archive)

Output: PDF, EML, PST, MSG

OS: Windows 10 / Windows 11 (64-bit)

Runtime: .NET Framework 4.8 or higher

Network Requirement: None — fully offline

Version: 6.3 (Latest)

Univik builds specialist Windows file conversion tools since 2013.

Full documentation and download: univik.com/file/converter/mbs.html

Support and licensing: univik.com/contact-us.html