M365 Data Simulator - Microsoft 365 test data generator

Simulate data and life
into your M365 tenant.

Populate your Microsoft 365 environment with realistic demo data in minutes. Not hours.

100% Free to use, no subscription

Features

Everything you need.
Nothing you don't.

Emails

Generate realistic email conversations across mailboxes with natural sender, subject, body and attachments.

OneDrive

Populate OneDrive with documents, spreadsheets, and folder structures that look real.

SharePoint

Create SharePoint sites with document libraries, lists, and realistic content hierarchies.

Teams

Generate Teams channels with threaded conversations, members, and owners.

Users

Set up a process to create new user accounts and automatically assign them an M365 license as part of the onboarding flow.

Automation

Schedule recurring data generation jobs to keep your tenant continuously populated and alive.

Services

Covers the entire
Microsoft 365 ecosystem.

Exchange Mail
OneDrive
SharePoint
Teams
Analytics
Users
Intune Policies
Conditional Access

Analytics

Know your tenant.
From every angle.

Basic Report

Get a quick snapshot of your tenant: user count, license usage, storage consumption, and service activity at a glance.

Advanced Report

Deep-dive into trends, growth rates, and detailed breakdowns across all M365 services with rich interactive charts.

Relationship Map

An interactive visual map that instantly shows how users, groups, and SharePoint sites are connected, making access relationships clear and easy to explore.

Migration

Move data between users.
Effortlessly.

user.a@contoso.com
user.b@contoso.com
Exchange
OneDrive

Carbon Copy

Exact replica of Exchange mailboxes and OneDrive content, folders, metadata, and timestamps all preserved.

Batch Migration

Run multiple migrations in one task. Supports 1:1, 1:many, and many:many patterns for large-scale rollouts.

Mapping Tool

Visual mapper to design migration paths. Define source-to-target pairs and preview the plan before execution.

Selective Migration

Migrate emails, files, or both, choose exactly what you want to move and control how the transfer is handled with precision.

Security Testing

Test your defences.
With real attack scenarios.

Go beyond basic data generation. Simulate real-world security threats directly inside your Microsoft 365 lab tenant to validate DLP policies, SIEM detection, and incident response playbooks.

DLP Testing

Sensitive Data Generation

Inject realistic, checksum-valid sensitive data into Exchange emails, OneDrive files, and SharePoint documents to verify your DLP policies catch what they should. Every generated value passes the same format validation that real DLP engines use.

3 services, Exchange emails, OneDrive and SharePoint files (.docx, .xlsx, .pdf, .txt)
6 locales, US, FR, DE, UK, IT, ES with locale-accurate names, addresses, and file names
5 data types, Social security numbers, credit cards (Luhn-valid), national IDs, driving licences, passports
Stack multiple cards, Test several DLP policies across services in a single automation run
Ransomware Simulation

Encrypt & Rollback

Simulate a real ransomware attack on OneDrive or SharePoint files, then roll it back completely. Validate SIEM alerts, incident response playbooks, and backup recovery procedures in a controlled lab environment.

Real encryption, AES-128 CBC transforms file content, not just a rename. Triggers genuine entropy-based detection
2 attack profiles, WannaCry-like (.wcry) and LockBit-like (.lockbit) with ransom notes
Full rollback, Decrypt and restore every file to its original state with a single action
OneDrive & SharePoint, works on any folder in a user's OneDrive or any SharePoint document library

MCP Ready

AI-powered control.
Built right in.

MCP Protocol

Expose the simulator as an MCP server so AI agents and copilots can trigger data generation programmatically.

AI Agent Integration

Let your AI assistants populate tenants on demand through natural language commands via the MCP interface.

Extensible Tools

Each M365 service is exposed as an individual MCP tool, giving fine-grained control over what gets generated and how.

How it works

Three steps.
That's it.

1

Connect

Deploy the enterprise app in your M365 tenant and authenticate with your admin account.

2

Configure

Choose which services to populate and how much data to generate. Customize to your needs.

3

Generate

Hit start and watch your tenant come alive with realistic data across all M365 services.

M365 Data Simulator

Ready to populate
your tenant?

Start generating realistic Microsoft 365 data today.
No installation required.