Apache Cassandra license, foundation and stars

Databases and caches · Apache 2.0 (open source) · 10,140 stars

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Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.

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Project	License	Stars	Per week	Latest release
supabaseThe Postgres development platform.SupabaseApache 2.0	Apache 2.0	115k	+646	-
netdataUnverifiedThe fastest path to AI-powered full stack observability, even for lean teams.GPL v3	GPL v3	81.3k	+88	-
RedisFor developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.RedisRSALv2 or SSPL or AGPL v3	RSALv2 or SSPL or AGPL v3changed May 2025	77.2k	+122	8.10.2Sep 17, 2026
prometheusThe Prometheus monitoring system and time series database.Apache 2.0	Apache 2.0	67k	+125	-
NocoDBA Free & Self-hostable Airtable Alternative.NocoDBn8n Sustainable Use License 1.0	n8n Sustainable Use License 1.0changed Jan 2026	65.4k	+58	2026.10.1Oct 29, 2026
ClickHouseClickHouse is a real-time analytics database management system.ClickHouseApache 2.0	Apache 2.0	50.8k	+125	v26.9.2.8-stableSep 22, 2026
tidbTiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search.Apache 2.0	Apache 2.0	40.7k	+22	-
leveldbLevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.GoogleBSD 3-Clause	BSD 3-Clause	39.5k	+12	-