Ingres is an open-source RDBMS solution from Actian. Compare it against 85 other RDBMS tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.
What is Ingres?
Ingres is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under RDBMS and published by Actian. Buyers typically evaluate Ingres when they need a dependable RDBMS option and want to weigh the trade-offs between free, open-source and paid tools before committing.
Yes. Ingres is open source and free to use, with no purchase cost for the core product.
What are the best Ingres alternatives?
Popular RDBMS alternatives to Ingres include 4th Dimension (4D), Actian Vector, Actian Zen (PSQL), Adabas D. See the full list of RDBMS on FreeSoftwareX.
What type of software is Ingres?
Ingres is an open-source RDBMS tool developed by Actian.
