Weaviate
Open-source vector database with hybrid search and generative module integrations.
Weaviate is an open-source vector database with hybrid search and generative module integrations. Weaviate is an open-source vector database distributed under a permissive license.
About Weaviate
Weaviate is an open-source vector database with hybrid search and generative module integrations.
Its calling card is hybrid search that combines dense vector similarity with BM25 keyword retrieval, plus a modules system whose generative integrations connect LLMs to your search results. It runs self-hosted on macOS, Windows, or Linux, or as a managed cloud service.
It suits teams building search or retrieval-augmented generation who want an open-source license and control over deployment. Weigh two caveats: the hosted Weaviate Cloud Services free tier limits storage and query volume after the sandbox period, and self-hosting at scale takes operational skill for clustering, replication, and module management.
Against other vector databases, its pull is the open-source license paired with built-in hybrid search and LLM module integrations rather than a single hosted-only offering.
Sources: weaviate.io, this listing
What it does well
- Weaviate is an open-source vector database distributed under a permissive license.
- Weaviate supports hybrid search that combines dense vector similarity with BM25 keyword retrieval.
- Weaviate includes a modules system with generative integrations for connecting LLMs to search results.
- Weaviate can be self-hosted on macOS, Windows, or Linux servers or used as a managed cloud service.
Where it falls short
- The hosted Weaviate Cloud Services free tier imposes limits on storage and query volume after the sandbox period.
- Self-hosting at scale requires operational expertise for clustering, replication, and module management.
Tagged
- Self-hostable
- Bring Your Own Key
- Web-based
- Enterprise Plan
- Freemium
- Open Source
Compared with similar things
Picked by shared tags inside the AI Web Apps.
- 01Freemium →n8n
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- 02Freemium →Braintrust
Evaluation, prompt playground, and observability for LLM apps in production.
- 03Freemium →Appsmith
Open-source low-code platform for internal apps, self-hostable and SOC2-certified.
- 04Freemium →Qdrant
Open-source, Rust-based vector database optimised for high-recall similarity search.
- 05Freemium →Skyvern
LLM-powered browser automation that handles forms, captchas, and multi-page flows reliably.
- 06Freemium →Invoke
Open-source Stable Diffusion suite with a professional canvas, ControlNet pipeline, and team features.
Related reading
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Concepts you should know
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</a>Frequently asked questions
- What is Weaviate?
- Weaviate is an open-source vector database with hybrid search and generative module integrations.
- Is Weaviate free?
- Weaviate offers a free tier and paid plans with higher limits or premium features.
- What platforms does Weaviate support?
- Weaviate runs on mac, win, linux, web.
- What category does Weaviate belong to?
- Weaviate is in the AI Web Apps category — Web apps with AI baked in — built for everything from journaling to research. Submitter-shipped products live here.
- What are the downsides of Weaviate?
- The hosted Weaviate Cloud Services free tier imposes limits on storage and query volume after the sandbox period. Self-hosting at scale requires operational expertise for clustering, replication, and module management.