Redis Open Source is the free and openly licensed version of Redis, starting with Redis 8.0. It is available under the GNU Affero General Public License v3 (AGPLv3) license, making it an official open source project once again. Both RSALv2 and SSPLv1 licenses are also available, but they are considered source-available licenses.
The AGPL license permits free use, modification, and distribution of software over a network, with a provision that distributed, derivative works of the software including the source code are released under the same license. This provision, called the copyleft provision, ensures that modifications remain open and discourages cloud vendors from easily reselling Redis without our consent.
Redis Open Source includes core Redis functionality along with features previously part of Redis Stack, such as JSON, time series, probabilistic data structures (Bloom, Cuckoo, top-k, etc.), and powerful search capabilities including full-text and vector search.
Redis Open Source is suitable for development, experimentation, and many production use cases, but does not include Redis Software’s operational tooling, Active-Active replication, Redis Flex, or Redis Data Integration.