A Greenmask alternative for people who would rather not script it
Greenmask is a good open source tool: it wraps pg_dump, masks and subsets as it dumps, and restores with pg_restore. You write the config and run the steps. dbplex does the whole round in a Mac app: pull, mask, run the copy on localhost, save states, refresh.
For Apple Silicon Macs. 7 days free with every feature. No card and no account.
- Greenmask
- Open source, Apache 2.0
- Ready for
- PostgreSQL
- MySQL
- In beta
- dbplex
- A Mac app, 7 days free
Which one fits
Greenmask is a building block for a pipeline you own. dbplex is the finished thing on one Mac.
Pick Greenmask if
- You want a free, open source command you can run on Linux, Windows and in CI.
- You need subsets that keep every reference intact, or transformers with conditions.
- You keep shared, masked dumps on S3 for the whole team.
Pick dbplex if
- You want a masked copy running on localhost without writing a config file.
- Your database is not Postgres: MySQL, Supabase, MongoDB, Firestore, Redis and more.
- You want saved states, branches, a Refresh button and the migration script back to production.
- You want your AI agent on the copy through MCP.
Greenmask and dbplex, side by side
Greenmask and dbplex, for a masked copy on your own machine.
| Greenmask | dbplex | |
|---|---|---|
| Kind | A command line tool around pg_dump and pg_restore. | A Mac app. |
| Price | Free. The company sells support, and a separate product called Arcave. | $12.99 a month, or $79.99 for a year of updates, after 7 free days. |
| Databases | PostgreSQL; MySQL in beta. | 12 engines. |
| Personal data | Transformers you configure, deterministic if you want. | Masked as the copy is pulled on Postgres, Supabase, MySQL, MariaDB, Turso, SQL Server and Oracle. You confirm each column. |
| Subsets | Yes, keeping references between tables. | Turso only: a sample per table, with every row it points to. |
| After the dump | You restore it into a database you run. | The copy runs on localhost, with a URL to paste. |
| Going back | Restore the dump again. | Save a state and restore it, or branch the copy. Not yet on Supabase, where a backup opens as a new copy. |
Questions about Greenmask and dbplex
Is Greenmask still maintained?
Yes. It had a release in October 2026 and changes in November 2026.
Can dbplex subset a database like Greenmask?
Only on Turso, where you can pull a sample of 1 to 1,000,000 rows per table. On the other engines dbplex copies everything.
Can I use both?
Yes. Greenmask suits CI and shared dumps; dbplex suits the copy you and your agent work on during the day.
Sources
What this page says about Greenmask comes from its own pages, checked on 7 November 2026. If something has changed, tell us and we will fix it.
The databases it copies, and other comparisons
PostgreSQL
MySQL
SupabaseBreak prod. Locally.
Try it on your own database for 7 days. No card and no account.