Mock Data Python Packages

misata

High-performance open-source synthetic data engine. Uses LLMs for schema design and vectorized NumPy for deterministic, scalable generation.

11K 60 4

fabulist

Generate random strings that make sense.

5K 13 1

card-generator

Python library to generate and validate credit card numbers. Features a fast, offline BIN lookup using a local database. Zero dependencies, no API keys needed. Perfect for generating test data.

2K 63 32

eventum-generator

Realistic synthetic events for testing, demos, and pipelines — streamed live or generated in bulk

1K 46 1

mostlyai-mock

Synthetic Mock Data 🔮

1K 14 5

seedfaker

Deterministic synthetic data generator for realistic, correlated, and noisy test records across 68 locales. Rust CLI + Python + Node.js + Go + PHP + Ruby + MCP.

1K 23 0

lsstdesc-gcr-catalogs

A Python module that provides a unified interface to access mock galaxy catalogs and more for the LSST DESC

1K 26 21

fakedata-python

The fakedata package generates realistic synthetic user profiles for machine learning, deep learning, data analysis, and data science workflows.

923 9 3

mockjutsu

The Ultimate Algorithmic Mock Data Engine. Stop mocking with random strings — generate cryptographically valid test data. 390 types · 6 locales · Zero dependencies · CLI + REST API + JMeter Plugin

836 11 1

phoney

A fake information generator for creating realistic personal data including names, phone numbers, emails, and more.

726 7 1

pydni

Librería en Python para la validación y generación de documentos de identidad españoles (DNI, NIE, CIF, NIF), así como la creación de nombres y personas ficticias válidas para entornos de desarrollo, QA y pruebas automatizadas.

701 0 0

pyfake

A Flexible and Extensible fake data generator based on Pydantic models.

631 4 0

eventum-core

Realistic synthetic events for testing, demos, and pipelines — streamed live or generated in bulk

620 46 1

lokii

Generate, Load, Develop and Test with consistent relational datasets!

499 1 0

leblanc

leblanc is a modular Python library designed for the rapid generation of large-scale synthetic datasets across various business sectors. It is primarily built using Pandas, NumPy, and Faker to create realistic, structured DataFrames suitable for Data Science training, testing, and exploratory data analysis (EDA).

297 1 0