12 BEST Test Data Generator Tools (2025)
Michael Thompson
Test data generation is the process of generating random test data for executing test cases. Many test data generator tools are available that generate synthetic test data to create sensible data values that look like production test data. Test data generators can help create realistic test data even if no existing data is available.
After over 80 hours of research, I have analyzed 25+ Best Test Data Generator Tools, including both free and paid options. My comprehensive and unbiased guide dives deep into the features, pros and cons, and pricing of these tools. This ultimate review may help you discover the most trusted and insightful test data generators. Be sure to read the entire article for exclusive, well-researched insights. Read more…
Best Test Data Generation Tools to Download Online Dummy Data
| Tool Name | Key Features | Link |
|---|---|---|
| BlazeMeter | • It can develop variable and flexible test data for more accurate testing. • Synchronizes data for every test, whether the SUT or the mock services. |
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| K2view | • It helps perform a rollback of test data. • Recreates production issues within a matter of seconds. |
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| EMS Data Generator | • EMS Data Generator allows you to set NULL values. • You can save and edit generated data in SQL script. |
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| Informatica Test Data Management | • It offers monitoring and compliance reporting. • It continues masking in and across the databases. |
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| Double | • Demonstrate sound Doble test data governance practices. • Can upload data to private remote data storage. |
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1) BlazeMeter
BlazeMeter is a top-rated test data generation tool. During my review, I discovered that it helps teams optimize their testing and improve accuracy. BlazeMeter is great for expanding test coverage and boosting resilience in apps. It allowed me to speed up testing and improve the overall quality of my applications. I suggest BlazeMeter for its AI-powered data profiling and efficient test data creation.
Features:
- Mobile application testing: BlazeMeter carries out mobile application testing by generating synthetic test data. This tool generates correct test data and can even import data when using 3rd party pass for the testing process.
- Data consistency: You can now have data consistency for all the tests. Using this tool, you can even perform GUI functional tests. For one-time data generation, you can use it for all the areas.
- Mock service data: I can easily generate data for virtual and mock services with BlazeMeter, and it helps me develop flexible test data, which is essential for achieving accurate testing results.
- Data Synchronization: Your data is synchronized for every test, whether the SUT (systems under test) or the mock services. This approach offers a comprehensive testing experience.
Pros
Cons
Pricing:
- Price: Request sales for a quote
- Free Trial: Request a Free Demo
2) K2view
K2view‘s test data management tools impressed me with their speed and efficiency. I found that I could quickly provision trusted test data to any target environment, saving time and reducing costs. I tested the tool’s synthetic data generation, which offered me a simple way to fill in missing data.
In fact, K2view tools keep referential context intact and help prevent data overwriting, which I found helpful during concurrent provisioning tasks. This makes it one of the top-rated solutions for teams needing to manage large volumes of test data.
Features:
- Data subsetting: K2TDM uses different business parameters to access a data subset through multiple platforms. You can also perform a rollback of test data.
- Multiple facilities: I could manage version control easily with this tool, which allows me to set up full user access control based on roles and permissions. Additionally, it integrated smoothly with the DevOps CI/CD pipelines, making my workflow seamless.
- Recreation development: It recreates production issues within a matter of seconds. The tool creates a provision for the associated dataset from a high to low environment.
Pros
Cons
Pricing:
- Price: Request sales for a quote
- Free Trial: Request a Free Demo
3) EMS Data Generator
EMS Data Generator is an impressive data generation tool that I have tested for creating test data for MySQL tables. It helped me fill multiple MySQL tables with test data simultaneously, making the task efficient. I could use SQL query results as a list of values, which allowed me to generate accurate data. In my opinion, the tool provides excellent parameters for every field type. I particularly liked the ability to preview the generated data easily within the tool.
Features:
- Data encoding: EMS Data Generator supports encoding options for different script files. Additionally, it also supports Unicode files.
- Program installation: Those files containing test data come integrated with program installation pack. The latest version supports Windows 11 ARM.
- Database Migration: I could easily migrate from one DBMS to another using these tools, which allowed me to smoothly transition without losing any crucial data I needed for my work.
- JSON data type support: It also enables JSON data type support for Oracle 21c, MySQL 8, Firebird 4, PostgreSQL 16, etc.
Pros
Cons
Pricing:
- Price: EMS Data Generator for MySQL (Business) + 1 Year Maintenance at $110
- Free Trial: Download a fully-functional 30-day free trial
Link: https://www.sqlmanager.net/products/datagenerator
4) Informatica Test Data Management
Informatica Test Data Management stands out as one of the best test data generation tools. I could automate both data connections and test data generation without any hassle. Throughout my assessment, the tool consistently helped me find data for masking, which hides the original data with edited content across databases. It is an excellent solution for anyone needing robust data protection.
Features:
- Automated data identification: Informatica TDM identifies locations prone to sensitive data within a short time. Additionally, it continues masking in and across the databases.
- Data subset: I could set up smaller data sets, allowing me to enhance speed and performance while avoiding excessive infrastructure use.
- Pre-built accelerators: Masking algorithms let you stay anonymous when handling common data elements, thus eliminating the risk factors.
- Monitoring & reporting: It also engages the audit teams while focusing on the risk and compliance rules to handle the data governance initiatives.
Pros
Cons
Pricing:
- Price: Request sales for a quote
- Free Trial: Get free trial
Link: https://www.informatica.com/in/products/data-security/test-data-management.html
5) Double
Double is a remarkable test data management solution that I tested during my review. It allowed me to clean up data, convert files, and manage test plans with ease. I particularly liked how the tool helped me keep data organized across departments and regions. For businesses needing clean data for field testing, this solution is top-rated. It might be helpful to consider this option for ensuring consistent and reliable data handling in your organization.
Features:
- Managing data: Data management options are available for a range of test data, including SFRA (Sweep Frequency Response Analysis), T-Double Software, and DTA (Domestic Tariff Area).
- Strong supervision: With Double, you get best-in-class data management supervisory services. This initiative helps instigate best data management practices.
- Data governance: I can say the database is great for capturing data and backing it up in logical folders, which helps me ensure better organization and data management whenever needed.
- Database API: The application interface offers a service layer that retrieves test data and results. It also integrates with 3rd party business intelligence tools.
Pros
Cons
Pricing:
- Price: Please get in touch with the support team to get pricing quotes
Link: https://www.doble.com/product/test-data-management/
6) Broadcom EDMS
Broadcom EDMS is a remarkable test data generation tool that I evaluated during my research. I found that it can extract business data sets needed for targeted tests, and I liked that it helps define and reuse metadata. In my opinion, the tool made it possible to easily create data subsets and apply masking rules, ensuring data protection. It is one of the best tools for data security during test generation.
Features:
- Multiple rules: Broadcom EDMS offers many test data generation rules to create subsets containing all production data characteristics.
- Multiple subset functions: It provides multiple subset functions, including delete, insert, and truncate.
- High-end security: With the latest security measures, this dummy data generator tool eliminates unnecessary security risks and significantly reduces infrastructure costs.
- Wide-scale detection: I can detect data from confidential sources like price lists, and it allows me to quickly retrieve the essential information needed for my tasks.
Pros
Cons
Pricing:
- Price: For pricing, you can request the sales team
Link: https://www.broadcom.com/products/software/app-dev/test-data-manager
7) SAP Test Data Migration Server
During my review of SAP Test Data Migration Server, I found that it is a superior choice for managing test data generation. It helps you streamline development, testing, and training activities with real SAP data. The tool also boosts efficiency by reducing the time required to manage data in these systems. I particularly appreciate that it scrambles sensitive data, which helps comply with privacy laws.
Features:
- Snapshot feature: Using the snapshot feature, you can have a logical version of a specific storage volume using pointers for the associated data blocks.
- Data selection parallelization: You can schedule different batch jobs simultaneously through the data selection parallelization process.
- Creating user roles: I can access activities across the entire process tree, which allows me to view relevant data without restrictions.
- Active shell creation: You can copy every data from an application in one system to another using this process. It uses the core SAP system copy process.
Pros
Cons
Pricing:
- Price: Request sales for a quote
Link: https://help.sap.com/docs/SAP_TEST_DATA_MIGRATION_SERVER
8) Upscene – Advanced Data Generator
I reviewed Upscene, a data generator tool that creates realistic test data for databases. Its user-friendly interface made it easy for me to customize data types, relationships, and constraints. I found that its advanced tool generated data that seemed real. It helped me save time by allowing me to avoid manual data entry. This also enabled me to stress test large datasets before deployment, ensuring smoother operations.
Features:
- Creating complex data: It allows you to create complex data over multiple related tables.
- Support for data types: This tool supports various data types, including date and time, integers, binary, and Boolean.
- Multiple macros: You can use several macros for generating a single value.
- Generate Sensible Data: I could generate realistic and sensible data quickly, thanks to the included data libraries and the documentation that guided me through creating specific data types.
Pros
Cons
Pricing:
- Price: Start at €119
- Free Trial: You can download trial or free lite versions
Link: https://www.upscene.com/advanced_data_generator/
9) Mockaroo
Mockaroo is one of the most effective mock data generation tools. As I carried out my evaluation, I was able to create over 1,000 rows of test data in JSON, CSV, Excel, and SQL f
It provided me with a rich set of data libraries for mocking, and I could quickly download and upload customized data into my test environment.
Features:
- Data types: It provides a range of data types, including city, country, country code, street address, latitude, phone, state, and more.
- Mocking libraries: This tool provides numerous mocking libraries for every language and platform.
- Random test data: You can download randomly generated test data that can be loaded directly into your test environment.
Pros
Cons
Pricing:
- Price: Plans start at just $60/year
- Free Trial: The free plan allows up to 1,000 rows of test data in CSV, JSON, SQL, and Excel formats
Link: https://mockaroo.com/
10) GenerateData
GenerateData is a remarkable open-source data generator tool written in PHP, MySQL, and JavaScript. I checked its ability to produce great volumes of custom data for software testing. In my opinion, it is the most ideal tool for anyone who needs to create large sets of test data across various formats.
Features:
- Custom data types: It enables developers to write their own data types to generate new types of random data.
- Interconnected data: Using this tool, you can add new country plugins that supply city names, region names, and postal or zip code formats.
- GNU-license: This random online data generator tool provides a fully functional, GNU-licensed version.
Pros
Cons
Pricing:
- Free Trial: This is an open source project
Link: http://generatedata.com/
11) Delphix
Delphix is an impressive data generator tool. I could speed up my software releases by having access to virtual data whenever needed. In my experience, it allowed me to manage and track different versions of test data libraries, which made my processes more efficient.
Features:
- Error bookmark sharing: I can easily share bookmarks of error-filled environments with developers, which helps you address problems efficiently.
- Data compliance: This sample data generator can associate and secure sensitive info across millions of rows of data for its key digital apps. It complies with GDPR, CCPA, and other privacy laws.
- Extensible and open: Delphix has user-friendly UIs, CLIs, and APIs for managing data operations in different setups. It can connect to different data sources while integrating with CM, APM, and CI tools.
Pros
Cons
Pricing:
- Price: Request sales for a quote
Link: https://www.delphix.com/solutions/test-data-management
12) Original Software
During my review of Original Software, I found that it serves as a powerful data generator tool. It offered me the ability to test applications at the database and UI levels, which I particularly liked. I was able to integrate it with other tools to enhance the overall quality of applications. This makes it a great option for those aiming to improve their testing strategy.
Features:
- Data subsets creation: This test data creation tool lets you create data subsets with complete referential integrity for faster testing without compromising quality. You can also select or sample data by preserving valid data references.
- Multiple tracking: It is one of the best test data generation tools that enable you to track every insert, update, and delete, including intervening data states.
- Unit testing: Original Software offers complete unit testing to display in-batch processes and other functional aspects. It is compatible with IBM i-batch testing.
- Seamless functioning: I could easily work with this tool to automate testing by integrating it with other tools, making the process smoother without any performance issues, which is essential for faster results.
Pros
Cons
Pricing:
- Price: Their pricing depends on several factors. Hence, talk to their sales team to discuss the pricing
Link: https://originalsoftware.com/products/testbench/
What is Test Data Generator?
A Test Data Generator is a tool or software that automatically creates large sets of data for testing purposes. This data is typically used to test software applications, databases, or systems to ensure they can handle different scenarios, such as high volume, performance, or stress conditions. Test data can be synthetic or based on real-world data, depending on the testing needs. It helps simulate real user interactions and edge cases, making the testing process more efficient, thorough, and less time-consuming.
How Did We Choose Test Data Generator Tool?
At Guru99, we prioritize credibility by focusing on accurate, relevant, and objective information. After over 80 hours of research, I have analyzed 25+ Best Dummy Test Data Generator Tools, covering both free and paid options. This comprehensive and unbiased guide explores their features, pros and cons, and pricing. My rigorous content creation and review process guarantees informative and reliable insights. This review may help you discover the most trusted test data generators, so be sure to read the entire article for exclusive insights. When selecting a Online Test Data Generator Tool, consider the following key factors.
- Ease of Use: Consider the user interface and usability. A user-friendly tool can enhance productivity and reduce the learning curve for your team.
- Integration Capabilities: Check if the tool integrates seamlessly with your existing testing frameworks, CI/CD pipelines, and other development tools.
- Reporting and Analytics: Check if the tool provides insights into data generation processes, such as logs, reports, and metrics, to help analyze testing outcomes.
- Security Options: It is crucial to evaluate the security features offered by the tool to safeguard sensitive data and ensure compliance with regulations.
- Hardware/Software Requirements: Assess the hardware and software specifications needed to run the tool smoothly, ensuring compatibility with your existing systems.
- Client Preference: If the tool is being used for an outsourced project, it is important to account for the customer’s or client’s preferences regarding the data generation tool.
- Company Reviews: Research user feedback and reviews of the tool to gain insight into its performance, reliability, and potential challenges.
- Training Costs: Factor in the time and cost involved in training employees on how to effectively use the test data generation tool.
- Customer Support: Ensure the tool provider offers reliable and accessible customer support to address any challenges or issues during the tool’s implementation and operation.
- License Cost: Consider the cost of purchasing the tool, including any licensing fees, and check if they align with your budget and business goals.
Verdict:
When I explored the best test data generator tools, I aimed to find options that can truly help resolve complex data creation challenges. My focus was on solutions that offer customization, reliability, and efficiency. Check my verdict to see how each tool stands out and which one I recommend.
- BlazeMeter: It is an amazing tool, offering robust capabilities to simulate various test data efficiently and reliably, making it a top-notch choice for performance testing.
- K2view: This comprehensive platform allows for seamless data management with its customizable features, making it ideal for complex environments.
- EMS Data Generator: With its cost-effective and user-friendly interface, this tool ensures efficient data generation for both small and large-scale databases.
