Best Test Data Generator Products in 2026

A realistic data generator to test your app.

Key Mockaroo features:

Ease of Use Customizability Data Volume API Access

Automated AI security testing for agents, chatbots, and APIs. Find prompt injection, data leaks, and unsafe behavior before launch.

Key PromptBrake features:

AI Security Testing Supported Targets CI Release Gates Self-Hosted Execution

Try for free paid Free Trial $499 / Monthly (Enterprise: 30 scans, 1 active runner license) Sponsored

Generate random addresses, fake addresses for testing, development, and privacy. Free online tool with support for multiple countries, cities, and bulk generation.

Key Random Address Gen features:

Multiple Countries Instant Generation Privacy & Security

free

GenerateData.com: free, GNU-licensed, random custom data generator for testing software.

Key Generate Data features:

Customizable Data Types User-Friendly Interface Time Efficiency Privacy and Security

Open Source

Generate authentic and random addresses for any country with our Random Address Generator. Easily create addresses including street, city, state, postal code, and phone number. Perfect for testing and data generation.

free

Smock-it is a powerful CLI tool designed to simplify test data generation for Salesforce. A lightweight alternative to Mokraoo, it helps developers and QAs quickly generate, manage, and customize data for seamless testing and streamlined workflows.

Key Smock-it features:

Ease of Use Time Efficiency High Customizability Integration Capabilities

Open Source

Faker is a PHP library that generates fake data for you.

Key Faker features:

Data Generation Customizability Multilingual Support Wide Adoption

Generate fake addresses for testing purposes. For developers and testers only, not for real-world use.

Free random address generator for US, UK, Canada, Japan & Australia. Generate fake addresses, phone numbers & name aliases for QA testing, development & demos.

Key GeoMock features:

Easy GPS Spoofing for Testing No Root Required Simple User Interface Useful for Development Workflows

This tool is for 2D measurement data or data prepared with 2 columns.

Credit Card Generator is a website that lets you generate dummy credit card numbers and other info like name, CVV, expiry & issue date, country, and address.

Key Credit Card Generator features:

Educational Use Privacy Protection

Create an NCSOFT Account and play Lineage II for FREE.

Generate valid test credit card numbers.

Key Credit Card Number Generator features:

Free to Use Useful for Testing and Development Multiple Card Types Supported Easy to Use Interface

Realistic, relational Postgres test data — generated from your schema alone. No production access, no PII risk, no fragile seed scripts. Point Seedfast at your database, describe the scenario, and get a fully populated DB in one CLI command.

Key Seedfast features:

Large-volume seeding Data realism CLI MCP integration

freemium $16 / Monthly (Basic ($32 in credits))