Free and open first
Best Ai Databases in 2026
AI database tools support applications that use AI-related data and search. This list includes hosted services, APIs and software you can run on your own systems.
- 40 apps
- Research read 7 Oct 2026
- How the order is worked out
- 1
Chroma
Free plan Open source AndroidAPIiPhone+5Choose Chroma if you need an open-source embedding database with multiple search methods and flexible deployment options.
- 2
Vespa
Free plan Open source APILinuxMac+3Vespa offers varied search and ranking methods alongside self-managed and cloud deployment paths.
- 3
ClickHouse Cloud
by ClickHouse CloudFree trial Open source APILinuxMac+3ClickHouse Cloud provides managed analytics infrastructure with cloud flexibility, ingestion tools, SQL access, and automated operations.
- 4
Elasticsearch
Free plan APILinuxSelf-hosted+1Choose Elasticsearch for real-time search and analytics across varied data types, with deployment choices ranging from self-managed to serverless.
- 5
- 6
Neon
Free plan APILinuxMac+2Neon combines managed PostgreSQL with compute that can pause during inactivity, database branching, and programmatic management.
- 7
Amazon OpenSearch Service
Free plan APIWeb7.3 Visit site - 8
Azure Cosmos DB for NoSQL
by Azure Cosmos DB for NoSQLFree plan APISelf-hostedChoose Azure Cosmos DB for NoSQL if your application needs a managed cloud database with JSON documents, transactions, scaling, or multi-region support.
- 9
Cloudflare Vectorize
Free plan APIWebVectorize provides a Workers-connected database for vector indexing and querying, with defined capacity and query limits.
- 10
KDB.AI
Free plan APISelf-hostedWebKDB.AI offers hybrid search and multimodal retrieval features, with managed cloud and self-managed deployment options.
- 11
LanceDB
Free plan APILinuxSelf-hosted - 12
OpenSearch
by OpenSearchFree plan APILinuxMac+3OpenSearch provides a free search and analytics suite with ingestion, visualization, and machine-learning capabilities.
- 13
- 14
Amazon Aurora
by Amazon AuroraFree plan APIChoose Amazon Aurora if you need a managed relational database with PostgreSQL, MySQL, or DSQL engines and want database operations through the RDS console, CLI, or API.
7.2 Visit site - 15
Milvus
Free plan APILinuxSelf-hostedMilvus offers a free, open-source path from local vector search to large distributed deployments.
- 16
- 17
Redis Insight
Free plan LinuxMacSelf-hosted+2Redis Insight brings Redis data browsing, command work, and analysis into a free GUI and CLI tool. Check the Docker-only API availability and SSPLv1 licensing if those affect your deployment.
- 18
SingleStore Helios
by SingleStore HeliosFree plan APILinuxMac+3Helios brings varied data capabilities and ingestion options to a managed cloud database, with separate Shared, Standard, and Enterprise plans.
- 19
Supabase
Free plan AndroidAPIiPhone+4Supabase brings a Postgres database and several backend services together, with client libraries and self-hosting documentation.
- 20
Tigris
Free plan APISelf-hostedWeb - 21
TileDB Cloud
Free plan APISelf-hostedWebTileDB Cloud combines array-based storage, in-place analysis, versioning, collaboration, and multiple deployment models.
- 22
Vald
Free plan APILinuxSelf-hostedVald offers distributed dense-vector search with asynchronous indexing, scaling, and index backup options. Deployment requires Kubernetes, Helm, and Go according to its getting-started requirements.
- 23
Vecto
Free plan LinuxMacWindowsVecto offers image tracing with SVG export, local processing and a free open-source build. Check the platform distinction: only Windows has the graphical app.
- 24
- 25
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare deployment options, index types, maximum vector dimensions, metadata filtering, hybrid search and managed backups. Check free-plan limits, trial length, pricing after a trial, and the licence when you need to read or change code.
Questions
Are free plans available for AI databases?
Yes. A free plan is offered by tools on this list, including Amazon OpenSearch Service, Chroma, Cloudflare Vectorize, DataStax Astra DB, Elasticsearch and KDB.AI.
Which tools offer a free trial?
Listed trial examples include AlloyDB AI with 30 days, Databricks Mosaic AI with 14 days, and Elasticsearch with 14 days.
What platforms are covered?
The list covers web, API, self-hosted, Linux, macOS and Windows deployment options.
What is the lowest stated paid price?
Stated starting prices include DataStax Astra DB from $1 and Cloudflare Vectorize from $5 per month. Check current terms before subscribing.
Can I read or change the source code?
Open-source code is offered by tools on this list. Check the specific tool's licence to confirm what reading, modifying and redistributing code permits.