List of the Top 9 Free Synthetic Data Generation Tools in 2025

Windocks offers customizable, on-demand access to databases like Oracle and SQL Server, tailored for various purposes such as Development, Testing, Reporting, Machine Learning, and DevOps. Their database orchestration facilitates a seamless, code-free automated delivery process that encompasses features like data masking, synthetic data generation, Git operations, access controls, and secrets management. Users can deploy databases to traditional instances, Kubernetes, or Docker containers, enhancing flexibility and scalability. Installation of Windocks can be accomplished on standard Linux or Windows servers in just a few minutes, and it is compatible with any public cloud platform or on-premise system. One virtual machine can support as many as 50 simultaneous database environments, and when integrated with Docker containers, enterprises frequently experience a notable 5:1 decrease in the number of lower-level database VMs required. This efficiency not only optimizes resource usage but also accelerates development and testing cycles significantly.

CloudTDMS serves as the ultimate solution for Test Data Management, allowing users to explore and analyze their data while creating and generating test data for a diverse range of team members, including architects, developers, testers, DevOps, business analysts, data engineers, and beyond. With its No-Code platform, CloudTDMS enables swift definition of data models and rapid generation of synthetic data, ensuring that your investments in Test Data Management yield quicker returns. The platform streamlines the creation of test data for various non-production scenarios such as development, testing, training, upgrades, and profiling, all while maintaining adherence to regulatory and organizational standards and policies. By facilitating the manufacturing and provisioning of data across multiple testing environments through Synthetic Test Data Generation, Data Discovery, and Profiling, CloudTDMS significantly enhances operational efficiency. This powerful No-Code platform equips you with all the essential tools needed to accelerate your data development and testing processes effectively. Notably, CloudTDMS adeptly addresses a variety of challenges, including ensuring regulatory compliance, maintaining test data readiness, conducting thorough data profiling, and enabling automation in testing workflows. Additionally, with its user-friendly interface, teams can quickly adapt to the system, further improving productivity and collaboration across all functions.

Our innovative platform leverages artificial intelligence to support data analysts and machine learning engineers in maximizing the capabilities of their analytical datasets. By identifying patterns in existing data, Datomize enables users to generate the specific analytical datasets they need. With data that mirrors real-world conditions, users gain a more profound understanding of their environment, leading to more effective decision-making. Experience enhanced insights from your data and seamlessly create state-of-the-art AI solutions. The generative models utilized by Datomize produce high-quality synthetic replicas by studying the behaviors present in your data. Additionally, our sophisticated augmentation capabilities allow for limitless data expansion, while our dynamic validation tools provide a visual comparison between original and synthetic datasets. By adopting a data-centric approach, Datomize addresses critical data challenges that can impede the creation of high-performing machine learning models, ultimately resulting in improved outcomes for users. This holistic strategy not only empowers organizations but also ensures they can excel in a rapidly evolving data-centric landscape. The continuous evolution of our tools allows for even greater adaptability as user needs change over time.

Synth is a powerful open-source tool tailored for data-as-code, designed to streamline the creation of consistent and scalable datasets via a user-friendly command-line interface. This innovative tool allows users to generate precise and anonymized datasets that mimic production data, making it particularly useful for developing test data fixtures essential for development, testing, and continuous integration. It empowers developers to craft data narratives by specifying constraints, relationships, and semantics tailored to their unique needs. Moreover, Synth facilitates the seeding of both development and testing environments while ensuring that sensitive production data remains anonymized. With Synth, you can produce realistic datasets that align with your specific requirements. By utilizing a declarative configuration language, users can define their entire data model as code, enhancing clarity and maintainability. Additionally, it effectively imports data from various existing sources, allowing for the generation of accurate and adaptable data models. Supporting both semi-structured data and a diverse range of database types, Synth is compatible with SQL and NoSQL databases, making it a highly flexible solution. It also supports an extensive array of semantic types, such as credit card numbers and email addresses, providing comprehensive data generation capabilities. Ultimately, Synth emerges as an indispensable tool for anyone seeking to optimize their data generation processes efficiently, ensuring that the generated data meets their specific requirements while maintaining high standards of privacy and security.

The Synthetic Data Vault (SDV) is a robust Python library designed to facilitate the seamless generation of synthetic tabular data. By leveraging a variety of machine learning techniques, it successfully captures and recreates the inherent patterns found in real datasets, producing synthetic data that closely resembles actual scenarios. The SDV encompasses a diverse set of models, ranging from traditional statistical methods like GaussianCopula to cutting-edge deep learning approaches such as CTGAN. Users have the capability to generate data for standalone tables, relational tables, or even sequential data structures. In addition, the library enables users to evaluate the synthetic data against real data through different metrics, promoting comprehensive comparison. It also features diagnostic tools that produce quality reports to improve insights and uncover potential challenges. Furthermore, users can customize the data processing for enhanced synthetic data quality, choose from various anonymization strategies, and implement business rules through logical constraints. This synthetic data can not only act as a safer alternative to real data but can also serve as a valuable addition to existing datasets. Overall, the SDV represents a complete ecosystem for synthetic data modeling, evaluation, and metric analysis, positioning it as an essential tool for data-centric initiatives. Its adaptability guarantees that it addresses a broad spectrum of user requirements in both data generation and analysis. In summary, the SDV not only simplifies the process of synthetic data creation but also empowers users to maintain data integrity and security while still harnessing the power of data for insightful analytics.

RNDGen's Random Data Generator is a free and intuitive tool designed for generating test data tailored to your specifications. Users can modify an existing data model to craft a mock table structure that aligns perfectly with their requirements. Often referred to as dummy data or mock data, this tool is versatile enough to produce data in various formats such as CSV, SQL, and JSON. The RNDGen Data Generator allows you to create synthetic data that closely mimics real-world conditions. You have the option to select a wide array of fake data fields, which encompass names, email addresses, zip codes, locations, and much more. Customization is key, as you can adjust the generated dummy information to suit your particular needs. With just a few clicks, you can effortlessly produce thousands of fake data rows in multiple formats, including CSV, SQL, JSON, XML, and Excel, making it a comprehensive solution for all your testing data requirements. This flexibility ensures that you can simulate various scenarios effectively for your projects.

Sixpack represents a groundbreaking approach to data management, specifically tailored to facilitate the generation of synthetic data for testing purposes. Unlike traditional techniques for creating test data, Sixpack offers an endless reservoir of synthetic data, allowing both testers and automated systems to navigate around conflicts and alleviate resource limitations. Its design prioritizes flexibility by enabling users to allocate, pool, and generate data on demand, all while upholding stringent quality standards and ensuring privacy compliance. Key features of Sixpack include a simple setup process, seamless API integration, and strong support for complex testing environments. By integrating smoothly into quality assurance workflows, it allows teams to conserve precious time by alleviating the challenges associated with data management, reducing redundancy, and preventing interruptions during testing. Furthermore, the platform boasts an intuitive dashboard that presents a clear overview of available data sets, empowering testers to efficiently distribute or consolidate data according to the unique requirements of their projects, thus further refining the testing workflow. This innovative solution not only streamlines processes but also enhances the overall effectiveness of testing initiatives.

Urbiverse revolutionizes urban transportation and logistics strategies by utilizing cutting-edge AI simulations, synthetic data technologies, and real-time scenario evaluations, combined with tailored fleet sizing and infrastructure planning. This platform empowers operators to forecast demand by examining past data, major events, seasonal trends, and current performance indicators; it also facilitates the modeling of diverse scenarios to evaluate the impact of new initiatives in ride-sharing, bike-sharing, cargo-bikes, or fleet sizes on various elements such as traffic patterns, user satisfaction, environmental goals, profitability, and total expenses. Furthermore, it delivers insights into the financial implications under varying tender conditions, enhances fleet distribution, streamlines operations, and arranges micromobility parking efficiently. By merging real-time and historical data, Urbiverse supports resource allocation across numerous vehicle categories, encouraging a transition from assumption-based decisions to evidence-based strategies for mobility operators and urban planners. In addition to this, it analyzes millions of trips to inform infrastructure development, enabling urban fleet planners to rigorously evaluate multiple scenarios and refine their strategies. This holistic methodology ultimately results in more intelligent urban mobility solutions that are capable of adapting to evolving demands and enhancing overall efficiency within the transportation landscape. As cities continue to grow and change, Urbiverse positions itself as an essential tool for shaping the future of urban mobility.

Smock-it is an innovative command-line tool that simplifies the process of generating synthetic test data for Salesforce environments. Designed for both small-scale projects and enterprise-level testing, Smock-it allows users to create data templates that accurately reflect their Salesforce schema, ensuring data is realistic and compatible with complex relationships and dependencies. The tool supports both standard and custom Salesforce objects, making it versatile for a wide range of testing needs. Smock-it ensures full compliance with GDPR and CCPA, generating synthetic data that avoids the privacy risks associated with using real customer information. It also supports bulk data generation, making it ideal for stress testing and performance evaluations. With features such as automated data refresh, advanced customization options, and the ability to directly insert data into Salesforce environments, Smock-it streamlines the testing process and ensures comprehensive coverage. Whether you need to test new features, train models, or validate workflows, Smock-it provides a fast, scalable solution that helps teams save time and maintain high testing standards.