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Cigati Google Workspace to Microsoft 365 Migration Tool

Migrate Gmail, Google Drive, Contacts, and Calendars directly from Google Workspace to Microsoft 365 while preserving data integrity.

The Cigati Google Workspace to Microsoft 365 Migration Tool enables organisations to transfer mailbox data between the two platforms through a streamlined process. This software preserves the original folder hierarchy throughout migration & make sure that data integrity is maintained at every stage. Giving administrators confidence that mailbox items arrive at their destination exactly as they were structured in the source environment. Software is designed to serve small businesses & enterprise environments alike. Offers a structured migration framework that minimises operational disruption. It supports a well-organised transition into the Microsoft 365 platform.

(Average Rating 4.7 Based on 344 Reviews)
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Operation

Compliance

Security

Administrator

Controlled

OAuth 2.0

(Modern Authentication)

6000+

Mailboxes migration

1:1 → M:M

Mailbox mapping modes

Fast Processing via Multithreading
Local Processing

Migrate Gmail Data to Shared and Primary Mailboxes

The Cigati Google Workspace to Microsoft 365 Migration Tool allows you to migrate Gmail data directly to both Primary Mailboxes and Shared Mailboxes in Microsoft 365.

Primary Mailbox Migration

Transfer Gmail, contacts, calendars, and other mailbox data from individual Google Workspace user accounts to their corresponding Microsoft 365 primary mailboxes. The tool preserves the original folder hierarchy and mailbox structure for a seamless user experience after migration.

Shared Mailbox Migration

Move Google Workspace mailbox data to Microsoft 365 shared mailboxes with requiring a dedicated user licence for the destination mailbox (subject to Microsoft 365 shared mailbox limitations) when you have more than 50 GB of data. This is useful for departments, support teams, and project groups that need common access to migrated email data.

The Google Workspace Backup Tool supports secure authentication, batch migration, and selective data transfer, helping organisations complete mailbox migrations with minimal downtime while maintaining data accuracy.

What Google Workspace to O365 migration tool Migrate?

Instead of just saying Gmail, Drive, Contacts, etc., show exactly what is transferred.

Google Workspace Data
Microsoft 365 Destination
Preserved
Gmail (Messages, Attachments, Header, & Formatting)
Outlook Mail
Labels & Folder Hierarchy
Mail Folder Structure
Read / Unread Status
Read / Unread Status
Contacts
Outlook Contacts
Calendar Events & Recurrence
Outlook Calendar
Docs, Sheets & Slides
DOCX, XLSX & PPTX
Drive & Shared Drives
OneDrive & SharePoint

Show Mailbox Count

Before the migration begins, Migrate G Suite to O365 displays the total number of selected mailboxes. This gives administrators a clear overview of the migration workload and helps them verify that all required mailboxes have been included. The mailbox count also makes it easier to monitor the migration process and track overall progress.

40 MB Chunk Processing

To improve migration performance, the tool automatically divides large drive data into 40 MB chunks before transferring it to Microsoft 365. Processing smaller data blocks reduces the impact of network interruptions, speeds up data transfer, and allows the migration to resume efficiently if it is paused or interrupted. This method ensures a stable and reliable migration, especially for large drive data.

Authentication & Security

The Google Workspace to O365 migration tool uses Google's recommended authentication methods to securely access Google Workspace data. It supports multiple login options for individual users, administrators, and enterprise environments while ensuring encrypted communication and minimal permission requests.

OAuth 2.0 Authentication

Users sign in directly with their Google account using OAuth 2.0. The software uses secure access instead of storing passwords.

Benefits

  • Secure Google sign-in
  • No Password Storage
  • Supports Gmail & Google Workspace Accounts

Domain-Wide Delegation

Admins authorize access to multiple user accounts through a service account.

Benefits

  • Bulk Mailbox Access
  • Enterprise-wide backup and migration
  • Centralized Administration
  • No individual user login required

JSON Credential Authentication

Service Account authentication using a JSON key file generated from Google Cloud Console.

Benefits

  • Secure Authentication
  • Supports automated operations
  • Required for Domain-Wide Delegation

P12 Authentication

Legacy P12 private keys for organizations using older Google Workspace configurations.

Benefits

  • Legacy environment support
  • Secure private key authentication

Microsoft Modern Authentication

OAuth 2.0 or Client ID authentication to securely connect with Microsoft 365 during migration.

Benefits

  • OAuth Authentication
  • MFA Support
  • No Basic Authentication

Security Features

No Password Storage

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No Password Storage

The software never stores Google Workspace or Microsoft 365 account passwords. Authentication is handled through secure OAuth Service Account credentials.

Local Processing

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Local Processing

Data is processed locally on the user's system, with direct communication to Google and Microsoft services without intermediary servers.

Secure Encrypted Authentication

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Secure Encrypted Authentication

All API requests are transmitted over HTTPS with TLS encryption to ensure secure communication.

Least Privilege Access

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Least Privilege Access

The Google Workspace to O365 Mail Migration software requests only the API permissions required for the selected backup or migration task, in line with Google's security best practices.

Enterprise G Suite To O365 Migration Tool Capabilities

Manage every stage of your migration with advanced mailbox mapping, selective data transfer, secure authentication, detailed reporting, and enterprise-ready migration controls.

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Microsoft 365 Destination Mapping

Look exactly how Gmail, Contacts, Calendars, Tasks, and Google Drive data are mapped to their corresponding Microsoft 365 services.

safe-and-secure

Admin Migration Workflow

Follow a guided admin workflow for bulk user selection, mailbox mapping, and secure Microsoft 365 migration.

interactive

Interactive Dashboard & Migration Console

Monitor migration progress, manage active tasks, access reports, and configure settings from a centralized dashboard.

search

Advanced Folder Selection

Search, preview, and select specific Gmail folders or labels to migrate only the data you need.

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Mailbox Selection & User Management

Easily search, select, and manage individual or multiple Google Workspace mailboxes before migration.

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Attachment Management Options

Include, exclude, or save email attachments separately to optimize migration based on your requirements.

delete

Server Cleanup After Migration

Migrate emails to the Bin or permanently remove them from the source mailbox after successful migration.

safe

Secure Local Data Processing

All migration operations run locally on your system using encrypted API connections without storing your credentials.

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How Your Data Appears in Microsoft 365

Understand where your migrated emails, contacts, calendars, tasks, and Google Drive are stored within Microsoft 365.

Advanced Google Workspace to Microsoft 365 Migration Tool Filters

Transfer only the data that matters using powerful filtering options designed for faster, cleaner, and more efficient migrations.

Email Filters

Date Range

Transfer emails from a specific date range.

Subject Filter

Migrate messages containing selected subject keywords.

Sender & Recipient

Filter emails by From, To, CC, or BCC addresses.

Message Body

Search email content and migrate only matching messages.

Preserve Read & Unread Emails

Make sure to preserve the read and unread status.

Folder Filters

Folder Name

Choose specific folders or Gmail labels easily.

Skip Empty Folders

Ignore folders that don't contain any emails.

Skip Deleted Items

Exclude deleted messages from migration.

Skip Duplicate Emails

Avoid migrating emails that already exist in the destination mailbox.

File Size

Filter emails based on overall message size.

Attachments

Attachment Size

Include emails matching attachment size criteria.

Include Attachments

Transfer all attachments together with email messages.

Exclude Attachments

Migrate emails only for faster processing and reduced storage usage.

Preserve Attachments

During migration, it preserves the email attachments.

Inline Attachments

Keeps the email and images preserved during the migration.

Migration Challenge? We Already Solved Them

Every migration comes with a few technical hurdles. Our software is designed to detect and handle them, and make sure you have a smoother and more reliable migration experience.

Migration Challenges How Our Tool Resolved It
Interrupted Migrations

Large migrations can stop due to network issues or server restarts.

Resume Migration

Continue the migration from the last checkpoint after an unexpected interruption.

Duplicate Emails

Running the migration multiple times can create duplicate emails in the destination.

Duplication Detection

Detects already migrated emails and skips them to keep the destination mailbox clean.

Folder Hierarchy Issues

Folders and subfolders can lose their structure during migration.

Preserve Folder Hierarchy

Retains the complete mailbox hierarchy, including all folders and subfolders.

Authentication Failures

Incorrect permissions or authentication method can stop the migration process.

Secure Authentication

Use Modern OAuth Authentication with account validation for a secure and reliable process.

Large Mailbox Handling

Mailboxes with thousands of emails and large attachments can slow down the migration process.

Optimizes Large Mailboxes

Process high-volume mailboxes efficiently with batch migration, filters, and file-splitting options.

Google API Throttling

Google limits the number of API requests within a specific time.

Smart Google API Management

It handles Google API throttling through controlled requests and intelligent retries.

Microsoft Graph API Limit

Microsoft Graph API may restrict excessive requests during migration to Microsoft 365.

Microsoft Graph Retry Logic

Detects Microsoft Graph rate limits and resumes processing automatically after the required waiting period.

Supported Microsoft 365 Workloads

Microsoft Service Supported
Outlook Mail ✔
Outlook Contacts ✔
Outlook Calendars ✔
OneDrive ✔
SharePoint Online ✔

How Duplicate Detection Works

The migrate G Suite to O365 software checks the Internet Message ID of each email before migration. If an email with the same unique ID already exists in the destination mailbox, it is automatically skipped. This prevents duplicate emails, supports smooth resume migration, and transfers only new or unmigrated data.

Migration Reports

After each migration, the software generates a detailed report that provides a complete overview of the migration process. These reports help administrators verify the results, identify any issues, and maintain records for auditing and troubleshooting.

Mailbox Processed

Displays the total number of mailboxes successfully processed during the migration.

Items Migrated

Shows the total number of emails, contacts, calendars, files, or other selected items that were migrated successfully.

Failed Items

Lists the items that could not be migrated, along with the corresponding error details.

Skipped Items

Displays items that were intentionally skipped due to filters, permissions, or user-defined settings.

Duplicate Count

Indicates the number of duplicate items detected and skipped during migration.

Migration Duration

Records the total time taken to complete the migration job.

Timestamp

Captures the start and completion date and time of the migration.

Exportable Logs

Allows migration reports to be exported for auditing, compliance, troubleshooting, or future reference.

Comprasion Table

Google Workspace Migration Tool: Demo vs Licensed Version

See the features you get in the demo vs licensed version of the Google Workspace email migration.

Feature Demo Version Licensed Version
Mailbox Backup & Migration Backup or migrate up to 500 emails per folder Complete Mailbox
Contacts Migration Transfers up to 100 contacts
Calendars Migration Transfers up to 100 calendar events
Export & Cloud Migration Supported with trial limitations
Google Drive Migration Migrates files up to 20 MB per file
Bulk Mailbox Migration (CSV) Supported with trial limits
Advanced Migration Filters
Migration Report & Log
Tech Support 24*7
Download and Purchase Download Purchase

Technical Specification

Software Prerequisites & Recommendations

Software Name: Cigati Google Workspace Migration Tool
Version Support(for Windows): Windows 11, 10, 8.1, 8, 7, Vista, and XP (32-bit & 64-bit)
Version Support(for Mac): macOS Sierra, macOS High Sierra, macOS Mojave, macOS Catalina, macOS Big Sur, macOS Monterey, macOS Ventura
Software Size: 458 MB
Minimum RAM: 8 GB RAM or higher
Version: 26.08
License: S/A/T/E
Download Link: Download
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Download Guide:

Software Guide
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FAQ:

FAQ

Frequently Asked Questions

Yes. The tool migrates Google Drive data to OneDrive or SharePoint while preserving the folder hierarchy and metadata. For Shared Drives, administrators should ensure proper ownership before migration for the best results.

No. Gmail labels are mapped to folders where applicable, but each email is migrated only once. The software also checks the Internet Message ID to detect and skip duplicate emails during repeat migrations.

Yes. Google Docs, Sheets, and Slides are automatically converted into Microsoft formats such as DOCX, XLSX, and PPTX in the Drive while preserving the file structure during migration.

The recommended approach is to complete mailbox and data migration first, verify the migrated data, and then update the DNS (MX) records during the final cutover. This minimizes downtime and ensures users can continue working during the transition.

Yes. The software supports bulk mailbox migration using CSV files and provides one-to-one, one-to-many, many-to-one, and many-to-many mailbox mapping, making it suitable for enterprise-scale migrations. Large projects should be planned in phases to account for API throttling and mailbox size.

The built-in Resume Migration feature continues the migration from the last completed checkpoint. Previously migrated items are skipped automatically, reducing migration time and preventing duplicate data.

Yes. Contacts are migrated to Outlook Contacts, and Calendar events, including recurring meetings, are transferred to Outlook Calendar while preserving their properties.

Yes. Advanced filters let you migrate specific emails by date, subject, sender, recipient, folder, attachment size, or message size. Administrators can also choose individual users or perform bulk migrations using CSV files.

Yes. Users can continue accessing their Google Workspace accounts while the migration is in progress. After the migration is verified, you can update the DNS records to start receiving new emails in Microsoft 365.

Yes. The software lets you choose what you want to migrate. You can migrate only Google Drive files or select Gmail, Contacts, Calendars, and other workloads individually.

Yes. Since the software preserves email headers, Message IDs, timestamps, and metadata, Outlook can continue displaying emails as conversation threads where supported.

Yes. Every migration generates detailed reports and exportable logs containing processed mailboxes, migrated items, skipped items, duplicate counts, errors, timestamps, and migration duration. These reports are useful for auditing, compliance, and troubleshooting.

Client Review

What Our Users Say

Businesses of all sizes rely on the Cigati Google Workspace Data Export Tool to back up and migrate Gmail and Google Drive data. Its secure authentication methods, advanced migration settings, data filtering options, and detailed migration reports make it a practical choice. IT administrators also appreciate its straightforward interface, which simplifies the management of bulk mailbox migrations.

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"Hi, I'm Michael Carter, IT Manager at NovaTech Solutions. Our organization used the Cigati Google Workspace to O365 Migration Tool to migrate hundreds of user mailboxes to Microsoft 365. The bulk CSV migration and mailbox mapping features made the entire process simple, and the detailed migration reports helped us verify that every mailbox was transferred successfully."

Michael Carter · United States

"Hi, This side Emma Richardson, Systems Administrator at BrightEdge Consulting. Our organization used the Cigati Google Workspace to Microsoft 365 Migration Tool during a large migration project. The Resume Migration feature allowed us to continue the migration after a network interruption without restarting the job, saving our team many hours of effort and minimizing downtime."

Emma Richardson · United Kingdom

"Hi, I'm Oliver Hoffmann, IT Infrastructure Lead at TechSphere GmbH. Our organization used the Cigati Google Workspace to O365 Migration Tool to migrate multiple Google Workspace accounts while preserving emails, contacts, calendars, folder hierarchy, and metadata. The advanced filters, duplicate detection, and comprehensive migration reports made the entire migration accurate and easy to manage."

Oliver Hoffmann · Germany