Launched January 6, 2026
BLR OST to PST Converter Software

BLR OST to PST Converter Software

Export/Convert Outlook Offline cache .ost files into PST for Outlook 2019, 2016, 2013.

One time feeOpen Source270 impressions#719 of its week

Microsoft Outlook offline versions of calendars, emails, and other mailbox data are kept in OST (Offline Storage Table) files. However, it is frequently required to convert OST to PST (Personal Storage Table) to retrieve or recover this data on a separate machine. Users can download the BLR OST to PST Converter Tool to convert all OST emails with attachments to PST file format. There are users can install this advanced utility in any Windows OS edition. To convert OST files to PST use some easy steps: Features of BLR OST to PST Converter Tool: Batch Conversion: This application can convert multiple OST files into PST in one time. Preserves Original Data Integrity: Maintains original folder structure, metadata (To, From, Subject, etc.), and formatting during conversion. Supports Encrypted & Orphaned OST Files: Usaers can recover and convert data from encrypted, corrupted, or orphaned OST files (not connected to the original Outlook profile). Split PST Option: Users can split large PST files into smaller parts while using this tool to prevent file corruption. Preview OST Content Before Conversion: Displays preview of emails, contacts, calendars, notes, tasks, and other mailbox items before begin the conversion. Numerous Export Options: In addition to PST, this program can export OST files to HTML, PDF, Office 365, Gmail, EML, MSG, and MBOX. Easy-to-use Interface: Both technical and non-technical users will find the user interface to be easy to use and intuitive. Installing Outlook is not needed: This fantastic tool can convert OST files without requiring the installation of Microsoft Outlook. 24/7 Technical Support: BLR Tools also offer customer support via chat, email, or phone. Steps to Convert OST to PST: 1. Download the BLR OST to PST Converter Software. 2. Start the tool and select OST files. 3. Preview every emails and select the PST format 4. Use filter features and choose a location. 5. After all steps, click the convert button to begin the conversion process.

BLR OST to PST Converter converts Outlook OST files—including encrypted, corrupted, or orphaned ones—into PST and other formats without needing Outlook installed.

for
IT admins, support staff, and users needing to recover or migrate Outlook data.
pricing
freemium · free trial
works withMicrosoft OutlookOffice 365GmailExchange ServerIMAP accountsYahoo MailHotmailThunderbird

Key features

6 features of BLR OST to PST Converter Software
  • Batch Conversion — Convert multiple OST files to PST in a single operation.
  • Data Integrity Preservation — Keeps original folder structure, metadata and formatting during conversion.
  • Encrypted & Orphaned OST Support — Recovers data from encrypted, corrupted or orphaned OST files.
  • Split PST Output — Divides large PST files into smaller parts to avoid corruption.
  • Preview Before Export — Shows emails, contacts, calendars, etc., in a tree view before conversion.
  • Multiple Export Formats — Exports to PST, HTML, PDF, EML, MSG, MBOX, Office 365, Gmail and more.

Use cases

  • Recover emails from a crashed Outlook profile
  • Migrate old OST data to a new Outlook installation
  • Export OST contacts to VCF for import into another client
  • Split a 60 GB OST into manageable PST chunks
  • Import archived OST data into Office 365 or Gmail

BLR OST to PST Converter Software FAQ

Can I convert OST files from a deleted or corrupted Outlook profile?+

Yes, the tool converts OST files from deleted or corrupted profiles without data loss.

Is Outlook installation required for conversion?+

No, the converter works without Outlook or Exchange Server installed.

Does the tool handle password-protected OST files?+

It can read password-protected OST files and convert their contents.

Can large OST files be split during conversion?+

Yes, you can split large PST outputs into smaller parts and define the size.

What export formats are available besides PST?+

HTML, PDF, EML, MSG, MBOX, Office 365, Gmail and other webmail formats.

Summarized by DevHunt from blrtools.com · Oct 8, 2026. Details may change; check the official site.