Vector Databases & RAG Infrafreemium

Chroma

Fully open-source embedded/self-hosted vector store, the default choice bundled into countless RAG tutorials and frameworks

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What Chroma does

  • Fully open-source embedded/self-hosted vector store, the default choice bundled into countless RAG tutorials and frameworks
  • Chroma Cloud managed tier starts with free usage credits, no subscription
  • Simple Python/JS-native API designed to be the easiest on-ramp to RAG for developers

Chroma — straight answers

What is Chroma?

Chroma is listed under Vector Databases & RAG Infra, in the Code & Development category on Flocci AI Tools. Fully open-source embedded/self-hosted vector store, the default choice bundled into countless RAG tutorials and frameworks. It is freemium — a usable free tier with paid plans above it, and it lives at trychroma.com.

Is Chroma free?

Chroma is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.

Can I use Chroma in a browser, or is there an app?

Chroma works in a normal browser tab with no install. It is available on the web, self-hosting and an API. You can sign in with a Google account.

What can Chroma do?

Chroma does 3 things the catalog singles out: Fully open-source embedded/self-hosted vector store, the default choice bundled into countless rag tutorials and frameworks; chroma cloud managed tier starts with free usage credits, no subscription; simple python/js-native api designed to be the easiest on-ramp to rag for developers.

What is the best free alternative to Chroma?

Vespa is the closest free alternative: it sits in the same Vector Databases & RAG Infra sub-category and is free. LanceDB, Microsoft GraphRAG and Milvus also start free. The full list is on the alternatives page.

See the full list →

Chroma alternatives

Compare all alternatives →

Qdrant

Vector Databases & RAG Infra
freemium
  • Open-source Rust-based vector database, self-hostable for free with no scale limit
  • Managed free tier cluster (0.5 vCPU/1GB RAM/4GB disk) for prototyping RAG apps with no card required for OSS use
  • Hybrid Cloud option to run managed clusters on your own infrastructure for compliance-sensitive RAG
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Weaviate

Vector Databases & RAG Infra
freemium
  • Free managed cloud plan (100k objects, 1GB memory, 10GB disk) to explore without self-hosting
  • Open-source core project can be self-hosted for free indefinitely, same engine as the managed cloud
  • Built-in hybrid (vector + keyword) search and native embedding/query-agent integrations
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Microsoft GraphRAG

Vector Databases & RAG Infra
freeNew
  • Builds knowledge graphs and community summaries from private text for RAG
  • Answers global, dataset-wide questions that vector RAG misses
  • Open-source Python library and CLI
  • Works with OpenAI-compatible and local models
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Milvus

Vector Databases & RAG Infra
freeNew
  • Cloud-native Apache-2.0 vector database for large-scale similarity search
  • Runs from a single-file Lite mode to distributed clusters
  • Managed Zilliz Cloud has a separate free tier
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LanceDB

Vector Databases & RAG Infra
freeNew
  • Embedded, developer-friendly retrieval library for multimodal AI
  • Columnar Lance format with vector and full-text search
  • Apache-2.0
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pgvector

Vector Databases & RAG Infra
freeNew
  • Open-source vector similarity search extension for Postgres
  • HNSW and IVFFlat indexes with exact and approximate search
  • Available on most managed Postgres hosts
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Head-to-head comparisons

Chroma vs QdrantChroma vs WeaviateChroma vs Microsoft GraphRAGChroma vs MilvusChroma vs LanceDBChroma vs pgvector