# TigerBeetle

> Apache-2.0 financial-transactions database, not general OLTP

**Category:** Databases  
**Pricing:** open-source  
**URL:** https://tigerbeetle.com  
**GitHub:** https://github.com/tigerbeetle/tigerbeetle  
**Added:** 2026-09-03

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## The Hook

TigerBeetle is a database for money, with a safety model Postgres was not designed for.

## What's Good

Apache-2.0. Debit/credit double-entry, strict serializability, replica safety. Single static binary. The docs are explicit: ledgers, not general CRUD.

## The Catch

Not a Postgres replacement. No ad-hoc SQL, no JSON documents. Clustered replicas. If you needed a general database, this is the wrong gem.

## Verdict

The financial transactions database. Apache-2.0, specialized on purpose.