Cigati OST Splitter Tool

Cigati OST Splitter Tool is a reliable utility designed to split large Outlook OST files into smaller, manageable parts. When OST files become too large, Outlook performance may slow down, and file handling becomes difficult. This tool helps users divide oversized OST files safely without losing any data.

The software allows users to split OST files based on size, date range, sender, and folders. With multiple splitting options, users can easily organize mailbox data and improve Outlook performance. The original folder structure and email properties are maintained throughout the process.

Cigati OST Splitter Software supports all major versions of Microsoft Outlook and Windows OS. It works efficiently with both ANSI and Unicode OST files and handles large mailbox data smoothly. The simple and user-friendly interface makes the tool suitable for both technical and non-technical users.

This tool is ideal for IT administrators, enterprises, and individual users who want to manage large OST files, reduce file size issues, and maintain better control over Outlook data.

Key Features of Cigati OST Splitter

Split OST by Size
Divide large OST files into smaller parts based on defined file size to prevent Outlook slowdowns and avoid file-size limitations.

Split OST by Date Range
Use custom date ranges to isolate and split data from specific time periods, making archiving and compliance tasks easier.

Split OST by Year
Automatically separate OST data into year-wise PST files for improved maintenance, searchability, and archival management.

Split OST by Folder
Generate individual PST files for specific mailbox folders such as Inbox, Sent Items, Drafts, and more to support targeted data handling.

Split OST by Sender or Subject
Split OST files based on particular sender addresses or specific subject text to isolate and manage related communications easily.

Works with Inaccessible & Orphaned OST Files
Process and split OST files even if they are not connected to an Exchange profile or Outlook, without needing Outlook installed.

Preserves Data Integrity
Maintains all email metadata (To, From, Subject, Date), attachments, folder hierarchy, read/unread status, and inline images throughout the process.

Compatible Across Outlook & Windows Versions
Supports OST files from all modern Microsoft Outlook editions and operates seamlessly on Windows 11, 10, 8.1, and earlier systems.

User-Friendly Interface
Designed for users of all technical levels — split large OST files with simple selections and step-by-step guidance.

Use Cases

• Enterprise IT Management: Manage large mailboxes across multiple users and reduce Outlook lag across an organization.

• Data Archiving: Split OST files into logical sections for long-term retention or compliance review.

• Disaster Recovery: Recover usable data from large, damaged, or orphaned OST files following Exchange interruptions.

• Migration Projects: Prepare segmented, smaller PST files ready for importing into new Outlook profiles or Microsoft 365 environments.