vendor lock-in → exit plan
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Databases

Best PostgreSQL alternatives

Ranked by migration effort. Open any path for a full cost model and plan.

1
MariaDB
Free (optional support) · open source
Low effort
~9 wks →
2
Microsoft SQL Server
Per-core + Software Assurance · commercial
Low effort
~12 wks →
3
MySQL
Free CE / paid editions · open source
Low effort
~12 wks →
4
Amazon Aurora
Managed usage-based · commercial
Low effort
~12 wks →
5
MongoDB
Per-node / Atlas usage · commercial
Low effort
~12 wks →
6
CockroachDB
Free core / Enterprise · open source
Low effort
~12 wks →
7
Oracle Database
Per-core perpetual + support · commercial
Medium effort
~15 wks →
8
IBM Db2
Per-core (PVU) + support · commercial
Medium effort
~15 wks →