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Neosync

Archived: open-source data anonymisation, no longer maintained after the Grow Therapy acquisition.

Test Data & MocksOpen sourceSelf-hostable
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What it is

Neosync anonymises production data, generates synthetic records and subsets databases while preserving referential integrity, self-hosted from an MIT-licensed codebase. Grow Therapy acquired the team and the project stopped there: the README carries an explicit 'no longer actively maintained' disclaimer, the GitHub repository is archived, and both the hosted cloud and neosync.dev are offline. The code still works, but nobody is shipping fixes.

Best for

Realistically, nobody starting fresh. Existing self-hosted users can keep running it, but plan a migration to Tonic or a maintained alternative.

Where it is strong

  • Open source and self-hostable, so sensitive data never leaves your infrastructure.
  • Preserves referential integrity across tables.
  • The last release is feature-complete for common Postgres and MySQL anonymisation work.

Where it falls short

  • Archived and unmaintained since August 2025 — no security patches, no new connectors, no support.
  • The hosted cloud has been shut down, so self-hosting is the only option.
  • Fewer database connectors than the incumbents.

Pricing

Free and open source

Open source

Free tier: Everything, self-hosted

What drives the bill: The MIT-licensed code remains free to self-host. The paid cloud service no longer exists — neosync.dev is offline.

Check current pricing on Nucleus Cloud (acquired by Grow Therapy)’s site

Figures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.

Works with

PostgreSQLMySQLMongoDBS3KubernetesGitHub Actions

What people who use Neosync say

No reviews of Neosync yet. If you have used it in anger, yours would be the first.

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