# Alternatives to Weaviate Weaviate is an open-source vector database with a managed cloud, built for AI-native search and retrieval. Weaviate ranks #8 of 9 in Vector databases, with an Alt Score of 79. It is licensed under BSD 3-Clause License, open source with paid hosting from $45/month and available on Web, Linux, macOS and Windows. 10 of 13 checklist rows are verified against a public source. Source: https://altcatalog.com/alternatives/weaviate/ Category: Vector databases ## Overview - **Who it's for**: Weaviate is aimed at teams building AI-native applications, such as retrieval-augmented generation (RAG) systems, semantic and image search, recommendation engines, chatbots, and content classification, who want a single database for objects and vectors rather than a bolt-on vector store. Its built-in multi-tenancy and RBAC make it a common choice for multi-tenant SaaS products. - **What you get**: Weaviate is an open-source (BSD 3-Clause), Go-based vector database that can be self-hosted for free via Docker or Kubernetes, or run as the managed Weaviate Cloud service, which offers a free Sandbox tier plus paid Flex (from $45/month) and Premium (from $400/month) tiers. It provides hybrid vector-plus-keyword search, metadata filtering and sorting, horizontal scaling via sharding and replica movement, and built-in embedding generation so third-party API keys are optional. - **How it works**: Weaviate stores objects, their vector embeddings, and inverted indexes together, using an HNSW vector index (with quantization enabled by default) and an LSM-based storage engine for objects and inverted indexes. Applications interact with it through REST, gRPC, and GraphQL APIs, or through official client libraries for Python, JavaScript/TypeScript, Java, Go, and C#/.NET, to create collections and run hybrid, filtered, or generative (RAG) queries. ## Profile - **License**: BSD 3-Clause License (verified 2026-07-16) - **Pricing model**: OSS + paid hosting (verified 2026-07-16) - **Starts at**: $45/month (verified 2026-07-16) - **Platforms**: Web, Linux, macOS, Windows - **Status**: active (verified 2026-07-16) ## Ranked alternatives | # | App | Alt Score | Licence | Platforms | |---|-----|-----------|---------|-----------| | 1 | [Chroma](https://altcatalog.com/alternatives/chroma.md) | 93 | Apache-2.0 | Windows, macOS, Linux | | 2 | [LanceDB](https://altcatalog.com/alternatives/lancedb.md) | 93 | Apache License 2.0 | ? | | 3 | [Milvus](https://altcatalog.com/alternatives/milvus.md) | 89 | Apache License 2.0 | Linux, macOS, Windows | | 4 | [Qdrant](https://altcatalog.com/alternatives/qdrant.md) | 86 | Apache License 2.0 | Web, Windows, macOS, Linux | | 5 | [Pinecone](https://altcatalog.com/alternatives/pinecone.md) | 83 | Proprietary | Web | | 6 | [Vespa](https://altcatalog.com/alternatives/vespa.md) | 83 | Apache-2.0 | Linux, macOS, Windows, Web | | 7 | [pgvector](https://altcatalog.com/alternatives/pgvector.md) | 79 | PostgreSQL License | Linux, macOS, Windows | | 8 | [turbopuffer](https://altcatalog.com/alternatives/turbopuffer.md) | 68 | Proprietary | Web | Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/ ## Feature comparison Legend: Yes / No / Partial / ? (not verified). | Vector databases checklist | Weaviate | Chroma | LanceDB | Milvus | Qdrant | Pinecone | |---|---|---|---|---|---|---| | Pricing model | OSS + paid hosting | OSS + paid hosting | OSS + paid hosting | OSS + paid hosting | OSS + paid hosting | Freemium | | Starts at | $45/month | $0/month + usage-based pricing | ? | From $0/month (Serverless, usage-based) or $126/GB/month (Dedicated) | $25 USD | $20/mo | | License | BSD 3-Clause License | Apache-2.0 | Apache License 2.0 | Apache License 2.0 | Apache License 2.0 | Proprietary | | Platforms | Web, Linux, macOS, Windows | Windows, macOS, Linux | ? | Linux, macOS, Windows | Web, Windows, macOS, Linux | Web | | Open source | Yes | Yes | Yes | Yes | Yes | No | | Self-hostable | Yes | Yes | Yes | Yes | Yes | No | | Fully managed cloud | Yes | Yes | Yes | Yes | Yes | Yes | | Hybrid search (vector + keyword) | Yes | Yes | Yes | Yes | Yes | Yes | | Metadata filtering | Yes | Yes | Yes | Yes | Yes | Yes | | Horizontal scaling / sharding | Yes | Yes | Yes | Yes | Yes | Yes | | Serverless option | ? | Yes | Yes | Yes | ? | Yes | | Built-in embedding generation | Yes | Yes | Yes | Partial | Yes | Yes | | Multi-tenancy / namespaces | Yes | Yes | Yes | Yes | Yes | Yes | | Real-time upserts | ? | Yes | Yes | Yes | ? | Yes | | SQL / existing-DB integration | ? | ? | Yes | No | Yes | Partial | | Free tier | Yes | Yes | ? | Yes | Yes | Yes | | SDKs (Python/JS) | Yes | Yes | Yes | Yes | Yes | Yes | ## Sources Sources for Weaviate. Each alternative is sourced on its own page. - **License**: BSD 3-Clause License — (verified 2026-07-16) - Note: Confirmed by the LICENSE file itself (raw.githubusercontent.com/weaviate/weaviate/main/LICENSE), which contains the standard BSD 3-Clause redistribution/disclaimer text, and by GitHub's repo metadata - Quote: “BSD 3-Clause License. See [LICENSE](./LICENSE) for details.” - **Pricing model**: OSS + paid hosting — (verified 2026-07-16) - Note: Weaviate is BSD-3-Clause licensed and free to self-host (see 'Open source' / 'Self-hostable' cells). Weaviate Cloud additionally offers a free Sandbox plan plus paid hosted tiers (Flex from $45/month, - Quote: “Compare Database plans Plan Free Flex Premium Shared Dedicated Contract” - **Starts at**: $45/month — (verified 2026-07-16) - Quote: “Flex Starts at $45 /mo Pay-as-you-go” - **Platforms**: Web, Linux, macOS, Windows — (verified 2026-07-16) - Note: Weaviate Cloud is a Web-based managed service. Self-hosting via Docker is stated to work on 'all OSes'; compiling from source is documented as Linux/Darwin only (no Windows). - Quote: “Docker (all OSes): https://docs.weaviate.io/weaviate/quickstart/local” - **Status**: active — (verified 2026-07-16) - Note: Latest tagged release (v1.38.4) was published the day before this research; GitHub repo metadata shows a push the same day, indicating ongoing active development. - Quote: “v1.38.4 - Async replication performance and stability Fixes” - **Open source**: Yes — (verified 2026-07-16) - Quote: “is an open-source, cloud-native vector database that stores both objects and vectors, enabling semantic search at scale.” - **Self-hostable**: Yes — (verified 2026-07-16) - Quote: “Weaviate offers multiple installation and deployment options: - Docker - Kubernetes - Weaviate Cloud” - **Fully managed cloud**: Yes — (verified 2026-07-16) - Quote: “managed deployment, scales to any production workload” - **Hybrid search (vector + keyword)**: Yes — (verified 2026-07-16) - Note: best ramen in nyc", limit=3)`" - Quote: “Hybrid search built-in with no extra configuration: `col.query.hybrid(query=” - **Metadata filtering**: Yes — (verified 2026-07-16) - Quote: “Advanced filtering & sorting (eq, neq, range, sort by) with ACORN, query planning, positive & negative correlation optimization” - **Horizontal scaling / sharding**: Yes — (verified 2026-07-16) - Quote: “Horizontal scalability via sharding & replica movement. Fully managed on Weaviate Cloud.” - **Built-in embedding generation**: Yes — (verified 2026-07-16) - Quote: “SOTA Weaviate-hosted embeddings (`text2vec-weaviate` — no configuration or API key required, recommended)” - **Multi-tenancy / namespaces**: Yes — (verified 2026-07-16) - Quote: “Production deployments benefit from built-in multi-tenancy, replication, RBAC authorization” - **Free tier**: Yes — (verified 2026-07-16) - Quote: “Always free — 1 cluster per user, upgrade to paid anytime. ✓ 100,000 objects · 1 GB memory · 10 GB disk.” - **SDKs (Python/JS)**: Yes — (verified 2026-07-16) - Note: The listed languages include Python and JavaScript/TypeScript (plus Java, Go, and C#/.NET). - Quote: “Weaviate provides client libraries for several programming languages:” --- Ranked by verified data, never by who paid. https://altcatalog.com/trust/