Metasyn

C tier on Test Data Management SoftwareScore 5.9 · #15 of 22

Android app: Not listed
Free plan: Yes
Runs on: Linux, Mac, self-hosted, Windows

github.com

Summary

Metasyn is ranked #15 of 22 in test data management software on Everything Xiaomi. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

Metasyn plans and pricing

All plans

Metasyn Free Open-source Python package · MIT license github.com · 4 Oct 2026

Compared on test data management software

Free plan: Yesgithub.com
Synthetic data generation: Yesgithub.com
Data masking: Nogithub.com
Data subsetting: Nogithub.com
Deployment model: self-hostedgithub.com
API access: Yesgithub.com

Facts

Purpose: Metasyn generates synthetic tabular data to help make sensitive datasets more accessible, reproducible, and reusable.github.com · 4 Oct 2026
Workflow: Users fit a MetaFrame to a dataframe, save its model and settings as auditable JSON, and synthesize new rows.github.com · 4 Oct 2026
Supported data: Metasyn handles multiple data types, missing values, categorical data, unique key columns, and structured strings such as postcodes or identifiers.github.com · 4 Oct 2026
Privacy approach: By default, Metasyn excludes multivariate information from its model to reduce risks such as identity, attribute, or group disclosure.github.com · 4 Oct 2026
Privacy plugin: The maker offers a disclosure-control plugin, while warning that synthetic output still needs human review and is not guaranteed to be free of sensitive information.github.com · 4 Oct 2026
Integrations: Metasyn supports Polars and pandas dataframes and uses Faker to generate localized names, emails, phone numbers, and other data.github.com · 4 Oct 2026
Extensibility: A plugin system lets users or organizations add extensions to adapt Metasyn to their needs.github.com · 4 Oct 2026
Installation: The package can be installed with pip from PyPI or directly from GitHub for the development version.github.com · 4 Oct 2026
Deployment: The project points users to versioned Docker containers and a command-line interface for building programs with Metasyn.github.com · 4 Oct 2026
Exports: Generated dataframes can be exported to CSV, Parquet, Excel, and other formats.github.com · 4 Oct 2026
Intended users: The documentation identifies public organizations, research groups, and individual researchers who own sensitive datasets as the intended audience.metasyn.readthedocs.io · 4 Oct 2026
Support: Users can report bugs or ask technical questions through GitHub issues and can contact Raoul Schram.github.com · 4 Oct 2026
License: The software is distributed under the MIT License, which grants free use, modification, distribution, and sublicensing subject to its conditions.github.com · 4 Oct 2026