Databases
Database Systems
Relational, document, analytical, vector, and embedded database engines.
Best Database Systems tools by public signals
These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.
Use Case Rankings
Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.
| # | Tool | Health | Shipping | Openness | Stars | Score | Status |
|---|---|---|---|---|---|---|---|
| 01 | ClickHouse ClickHouse® is a real-time analytics database management system | 100 | 100 | OSI-approved OSS | 48.9k | 100 | Active |
| 02 | Convex The open-source reactive database for app developers | 98 | 100 | OSI-approved OSS | 12.3k | 99 | Active |
| 03 | Meilisearch A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications. | 98 | 98 | License unknown | 58.8k | 99 | Active |
| 04 | DuckDB DuckDB is an analytical in-process SQL database management system | 98 | 95 | OSI-approved OSS | 39.8k | 98 | Active |
| 05 | SpacetimeDB Development at the speed of light | 98 | 95 | OSI-approved OSS | 24.9k | 98 | Active |
| 06 | TimescaleDB A time-series database for high-performance real-time analytics packaged as a Postgres extension | 98 | 95 | License unknown | 23.2k | 98 | Active |
| 07 | Redpanda Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM! | 98 | 95 | License unknown | 12.4k | 98 | Active |
| 08 | Valkey A flexible distributed key-value database that is optimized for caching and other realtime workloads. | 95 | 100 | OSI-approved OSS | 26.7k | 98 | Active |
| 09 | CrateDB CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene. | 91 | 100 | OSI-approved OSS | 4.4k | 96 | Active |
| 10 | Spice.ai A portable accelerated SQL query, search, and LLM-inference engine, written in Rust, for data-grounded AI apps and agents. | 91 | 98 | OSI-approved OSS | 3k | 96 | Active |
| 11 | OpenSearch 🔎 Open source distributed and RESTful search engine. | 93 | 95 | OSI-approved OSS | 13.4k | 95 | Active |
| 12 | etcd Distributed reliable key-value store for the most critical data of a distributed system | 93 | 95 | OSI-approved OSS | 52k | 95 | Active |
| 13 | RisingWave Event streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale. | 91 | 95 | OSI-approved OSS | 9.2k | 94 | Active |
| 14 | HASH Open-source multi-tenant platform for self-building knowledge graphs and simulation. | 90 | 98 | License unknown | 1.6k | 94 | Active |
| 15 | Weaviate Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​. | 88 | 100 | OSI-approved OSS | 16.7k | 94 | Active |
| 16 | PowerSync SDK that enables local-first and real-time reactive apps with embedded SQLite for JavaScript clients, including React Native and Web | 93 | 87 | OSI-approved OSS | 700 | 93 | Active |
| 17 | TiDB TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling. | 90 | 89 | OSI-approved OSS | 40.4k | 92 | Active |
| 18 | Trino Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io) | 90 | 89 | OSI-approved OSS | 13.1k | 92 | Active |
| 19 | SurrealDB A scalable, distributed, collaborative, document-graph database, for the realtime web | 88 | 92 | License unknown | 32.8k | 92 | Active |
| 20 | ParadeDB Simple, Elastic-quality search for Postgres | 86 | 95 | OSI-approved OSS | 9.1k | 92 | Active |
| 21 | Infinispan Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store. | 88 | 89 | OSI-approved OSS | 1.3k | 91 | Active |
| 22 | Memgraph In-memory graph database | 85 | 87 | License unknown | 4.3k | 90 | Active |
| 23 | SeMI Real-time vector search engine | 79 | 100 | OSI-approved OSS | 16.7k | 88 | Active |
| 24 | PgLite Embeddable Postgres with real-time, reactive bindings. | 93 | 70 | OSI-approved OSS | 15.7k | 87 | Active |
| 25 | PocketBase Open Source realtime backend in 1 file | 84 | 87 | OSI-approved OSS | 60.4k | 87 | Active |
| 26 | Neo4j Graph database platform | 86 | 76 | OSI-approved OSS | 17k | 86 | Active |
| 27 | RxDB A fast, local first, reactive Database for JavaScript Applications https://rxdb.info/ | 79 | 84 | OSI-approved OSS | 23.3k | 86 | Active |
| 28 | CockroachDB CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement. | 84 | 73 | License unknown | 32.3k | 85 | Active |
| 29 | Sonic 🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM. | 71 | 93 | OSI-approved OSS | 21.3k | 82 | Warning |
| 30 | ArangoDB Graph database and document store | 82 | 72 | License unknown | 14.2k | 81 | Active |
| 31 | HelixDB HelixDB is an OLTP graph-vector database built in Rust. | 82 | 65 | OSI-approved OSS | 5.7k | 81 | Active |
| 32 | DroneDB Registry Open-source geospatial data storage platform. | 73 | 72 | License unknown | 55 | 80 | Warning |
| 33 | Anyquery SQL query engine for querying apps, APIs, files, and SaaS data sources. | 63 | 57 | OSI-approved OSS | 1.7k | 70 | Warning |
| 34 | Typesense Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences | 69 | 41 | OSI-approved OSS | 26.4k | 68 | Warning |
| 35 | slothdb Embedded SQL OLAP in C++. Live views that re-parse only the bytes your CSVs grew by. Reads Parquet/CSV/JSON/Avro/Arrow/SQLite natively. 3.9Ă— DuckDB on a 5-query warm batch. MIT. | 53 | 39 | OSI-approved OSS | 440 | 61 | Warning |
| 36 | PlanetScale Serverless MySQL platform | 59 | 7 | OSI-approved OSS | 294 | 53 | Warning |
| 37 | Neon Serverless Postgres database | 53 | 15 | OSI-approved OSS | 22.7k | 53 | Warning |
| 38 | Zinc Labs Cloud native full text search | 54 | 7 | OSI-approved OSS | 17.9k | 50 | Warning |
| 39 | Marmot A distributed SQLite server with MySQL wire compatible interface | 46 | 13 | OSI-approved OSS | 2.8k | 48 | Critical |
| 40 | GridDB GridDB is a next-generation open source database that makes time series IoT and big data fast,and easy. | 35 | 4 | OSI-approved OSS | 2.5k | 36 | Critical |
| 41 | CnosDB A cloud-native open source distributed time series database with high performance, high compression ratio and high availability. | 31 | 0 | OSI-approved OSS | 1.8k | 33 | Critical |
Evidence Watch
Tracked tools with useful public signals but no verdict score yet.
AceBase
Backend server with REST APIs for core backend needs.
93 confidenceApache AGE
Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL.
100 confidencearcadedb
ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.
100 confidenceCozoDB
A transactional, relational-graph-vector database that uses Datalog for query. The hippocampus for AI!
69 confidencedata-api-builder
Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.
94 confidenceDatabend
Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.
100 confidenceDragonfly
A modern replacement for Redis and Memcached
100 confidenceDXOS
TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.
100 confidenceEion
Shared Memory Storage for Multi-Agent Systems
72 confidenceElectric SQL
Read-path sync engine for Postgres that handles partial replication, data delivery and fan-out.
100 confidenceEpsilla
Epsilla is a high performance Vector Database Management System
93 confidenceharper
Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process.
100 confidenceInfluxDB
Scalable datastore for metrics, events, and real-time analytics
100 confidenceLadybugDB
LadybugDB a graph database
100 confidenceLantern
PostgreSQL vector database extension for building AI applications
86 confidenceManticore Search
Search engine and full-text search database.
100 confidenceMilvus
Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search
100 confidenceNile
PostgreSQL reengineered for multi-tenant apps
87 confidenceOpenData
Collection of open source databases built on a common storage foundation.
100 confidenceOpenMLDB
Open-source machine learning database for consistent features across training and inference.
74 confidenceQdrant
Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/
100 confidenceQuestDB
QuestDB is a high performance, open-source, time-series database
100 confidenceRayforce
SIMD-accelerated columnar database for analytics.
100 confidenceredis
For 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.
100 confidenceS2
Durable Streams API
100 confidenceSereneDB
The First Distributed Real-Time Search Analytics Database
99 confidenceSQLSync
SQLSync is a collaborative offline-first wrapper around SQLite. It is designed to synchronize web application state between users, devices, and the edge.
90 confidenceStarRocks
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
100 confidenceSugarDB
Embeddable and distributed in-memory alternative to Redis.
79 confidenceTDengine
High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios
100 confidenceTerminusDB
TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data.
100 confidenceTurso
Turso is an in-process SQL database, compatible with SQLite.
100 confidenceXata
Open source, cloud native, Postgres platform with copy-on-write branching and scale-to-zero
99 confidenceXTDB
An immutable SQL database for application development, time-travel reporting and data compliance. Developed by @juxt
100 confidenceYantrikDB
Cognitive memory database for AI agents — consolidates duplicates, detects contradictions, fades stale memories via temporal decay. Rust, AGPL, ships as library / MCP server / HTTP cluster.
85 confidenceYDB
YDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions
100 confidenceYTsaurus
YTsaurus is a scalable and fault-tolerant open-source big data platform.
100 confidenceYugabyteDB
YugabyteDB - the cloud native distributed SQL database for mission-critical applications.
100 confidence