Open-Source Data Replication and Anonymization
Hey HN, we're Evis and Nick, we're excited to be launching Neosync on HN! Neosync is an open source data replication and anonymization project that helps developers create safe, anonymized test data and sync it across all environments for high-quality local, stage and CI testing. This is how it works: 1. You select a job type. Today we support data sync jobs (these sync data between two databases and run on a schedule you define) and a data generation job (this generates synthetic data from scratch and sends it to a destination). 2. Next you define your source database and a destination(s)…
Open-Source Data Replication and Anonymization launched on December 7, 2023 with 24 votes, #823 of 3,780 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
Neosync is an open-source tool that helps developers create anonymized test data and replicate it across development, staging, and CI environments. It supports scheduled database syncing and synthetic data generation, with over 40 built-in data transformers for masking sensitive information like emails and addresses. Developers can define custom transformations and connect multiple destination databases in a single job.
written from the facts on this page · September 2026
From the sources
Open Source Data Security Platform for Developers to Monitor and Detect PII, Anonymize Production Data and Sync it across environments. - GitHub - nucleuscloud/neosync: Open Source Data Security Platform for Developers to Monitor and Detect PII, Anonymize Production Data and Sync it across environments.
In the maker’s words, at launch
Hey HN, we're Evis and Nick, we're excited to be launching Neosync on HN! Neosync is an open source data replication and anonymization project that helps developers create safe, anonymized test data and sync it across all environments for high-quality local, stage and CI testing. This is how it works: 1. You select a…
Does a similar job
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Neosync – Open-Source Data Anonymization for Postgres and MySQL2024 · github.com · ▲246Hey HN, we're Evis and Nick and we're excited to be launching Neosync (https://www.github.com/nucleuscloud/neosync). Neosync is an open source platform that helps developers anonymize production data, generate synthetic data and sync it across their environments for better testing, debugging and developer experience. Most developers and teams have some version of a database seed script that creates some mock data for their local and stage databases. The problem is that production data is messy and it’s very difficult to replicate that with mock data. This causes two big…

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