Open-source data anonymisation and synthetic-data generation you can self-host.
Neosync anonymises production data, generates synthetic records and subsets databases while preserving referential integrity, and is open source with a self-hosted deployment option. It positions itself as the open alternative to the commercial data-privacy platforms.
Best for
From $20 per user/month (indicative, cloud)
Free tierFree tier: Open-source self-hosted edition is free.
What drives the bill: Self-hosting is free; the cloud service is priced per user and record volume.
Check current pricing on Nucleus Cloud’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
No reviews of Neosync yet. If you have used it in anger, yours would be the first.
If Neosync is not the right fit, these solve the same problem differently.
Test Data & Mocks
De-identify production data into safe, realistic, referentially intact test databases.
Test Data & Mocks
Generate a coherent, schema-aware seed database for local development and tests.
Test Data & Mocks
Generative synthetic data with differential-privacy guarantees.