ToolVitals
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Databases, pipelines, and analytics

Open Data Stack

Source-visible databases, data pipelines, analytics, BI, and catalog tools evaluated as parts of a modern data stack.

356 tracked50 ranked verdictsPublic evidence only

Buyer checklist

What to verify before adopting

  1. Which part of the data lifecycle does the tool own?
  2. How portable are schemas, queries, metadata, and stored data?
  3. Is the project keeping pace with connector, security, and reliability work?

Explore this ecosystem by job

Database Systems67BI & Dashboards37Data Pipelines34Observability27Database Admin23AI Agent Tools22Product Analytics17Web Analytics13

Evidence ranking

Leading projects in this ecosystem

Ordered by ToolVitals score, health, shipping, confidence, and adoption tie-breakers. Openness labels are shown explicitly.

#ToolHealthShippingStarsOpennessScore
1ClickHouseClickHouse® is a real-time analytics database management system999949.8kOSI-approved OSS99
2DuckDBDuckDB is an analytical in-process SQL database management system999941.1kOSI-approved OSS99
3YDBYDB is an open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions99994.8kOSI-approved OSS99
4YTsaurusYTsaurus is a scalable and fault-tolerant open-source big data platform.99992.2kOSI-approved OSS99
5Apache AirflowApache Airflow - A platform to programmatically author, schedule, and monitor workflows999846.8kOSI-approved OSS98
6LightdashSelf-serve BI to 10x your data team ⚡️98996.1kOSI-approved OSS98
7SupabaseOpen-source Firebase alternative9898109kOSI-approved OSS98
8Apache SupersetApache Superset is a Data Visualization and Data Exploration Platform989874.7kOSI-approved OSS98
9CoolifyAn open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ one-click services on your own servers.989861.6kOSI-approved OSS98
10OpenVikingSelf-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.989836.6kOSI-approved OSS98
11Langfuse🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23989834.4kOSI-approved OSS98
12KestraEvent Driven Orchestration & Scheduling Platform for Mission Critical Applications989828.1kOSI-approved OSS98
13TursoTurso is an in-process SQL database, compatible with SQLite.989824.2kOSI-approved OSS98
14OpenObserveOpen source observability platform for logs, metrics, traces, frontend monitoring, pipelines and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.989821.7kOSI-approved OSS98
15SeMIReal-time vector search engine989816.8kOSI-approved OSS98
16WeaviateWeaviate 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​.989816.8kOSI-approved OSS98
17thunderbird-androidThunderbird for Android – Open Source Email App for Android (fka K-9 Mail)989814kOSI-approved OSS98
18dbtdbt enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications.989813.8kOSI-approved OSS98
19WavelogWebbased Amateur Radio Logging Software - Log your contacts from everywhere!9898531OSI-approved OSS98
20texeraCollaborative Machine-Learning-Centric Data Analytics Using Workflows9898310OSI-approved OSS98
21PrometheusThe Prometheus monitoring system and time series database.989766kOSI-approved OSS98
22DebeziumChange data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.989713.1kOSI-approved OSS98
23InsForgeOpen-source backend platform for agentic coding with database, auth, storage, compute, hosting, and AI gateway components.989712.9kOSI-approved OSS98
24LangWatchThe platform for LLM evaluations and AI agent testing97983.5kOSI-approved OSS98
25DBeaverFree universal database tool and SQL client989751.7kOSI-approved OSS97
26OpenSearch🔎 Open source distributed and RESTful search engine.989713.7kOSI-approved OSS97
27ConvexThe open-source reactive database for app developers979812.5kOSI-approved OSS97
28Spice.aiA portable accelerated SQL query, search, and LLM-inference engine, written in Rust, for data-grounded AI apps and agents.97983.1kOSI-approved OSS97
29arcadedbArcadeDB 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.97981.1kOSI-approved OSS97
30TempsSelf host your own Vercel9798741OSI-approved OSS97
31NetdataThe fastest path to AI-powered full stack observability, even for lean teams.979780.5kOSI-approved OSS97
32AppwriteAppwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more979757.3kOSI-approved OSS97
33PrismaNext-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB979747.6kOSI-approved OSS97
34MilvusMilvus is a high-performance, cloud-native vector database built for scalable vector ANN search979746kOSI-approved OSS97
35QdrantQdrant - 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/979734.5kOSI-approved OSS97
36PrefectPrefect is a workflow orchestration framework for building resilient data pipelines in Python.979723.8kOSI-approved OSS97
37VectorA high-performance observability data pipeline.979722.5kOSI-approved OSS97
38VictoriaMetricsVictoriaMetrics: fast, cost-effective monitoring solution and time series database979717.7kOSI-approved OSS97
39BytebaseWorld's most advanced database DevSecOps solution for Developer, Security, DBA and Platform Engineering teams. The GitHub/GitLab for database DevSecOps.979714.5kOSI-approved OSS97
40StarRocksThe 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.979712.1kOSI-approved OSS97
41HyperDXResolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.97979.9kOSI-approved OSS97
42RisingWaveEvent streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale.97979.3kOSI-approved OSS97
43ParadeDBSimple, Elastic-quality search for Postgres97979.2kOSI-approved OSS97
44GrowthBookOpen Source Feature Flags, Experimentation, and Product Analytics97978.3kOSI-approved OSS97
45GreptimeDBThe open-source Observability 2.0 database. One engine for metrics, logs, and traces — replacing Prometheus, Loki & ES.97976.7kOSI-approved OSS97
46TableProNative macOS database client for MySQL, PostgreSQL, SQLite, MongoDB, Redis, and 15+ more. Free and open-source.97975.8kOSI-approved OSS97
47DefectDojoOpen-Source Unified Vulnerability Management, DevSecOps & ASPM97974.9kOSI-approved OSS97
48TabularisDBA lightweight, cross-platform database client for developers. Supports MySQL, PostgreSQL and SQLite. Hackable with plugins. Built for speed, security, and aesthetics.97974.9kOSI-approved OSS97
49DaguSelf-hosted workflow engine for scripts, cron jobs, containers, and ops automation. YAML workflows, retries, logs, approvals, and optional distributed workers.97973.9kOSI-approved OSS97
50FelderaIncremental computation engine.97972.1kOSI-approved OSS97

Also on evidence watch

Tracked matches that need stronger public evidence before receiving a ranked verdict.

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