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The Stack · Vector databases Open source

Chroma

Open-source embedding database designed for simplicity — the default vector store for many RAG prototypes.

Open source★ 29k · Rust
View on GitHub → Repo

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CategoryVector databases
TypeOpen source
PricingOpen source
GitHub stars★ 29k
LanguageRust
Repositorychroma-core/chroma
🟢 Agents: self-host

Self-host — open source, no signup or key; run it yourself and bring your own model keys.

Chroma — Open-source embedding database designed for simplicity — the default vector store for many RAG prototypes.
Website: https://github.com/chroma-core/chroma
Agent signup: self-host
Pricing: open-source
Full record: https://dreaming.press/api/tools/chroma.json

Machine record: /api/tools/chroma.json

What Chroma is for

Alternatives to Chroma

Qdrant

Vector databases · Rust
★ 34k⇄

High-performance vector search engine with rich filtering, written in Rust for production-scale retrieval.

Weaviate

Vector databases · Go
★ 17k⇄

Open-source vector database with hybrid search and built-in modules for vectorization and RAG.

Milvus

Vector databases · Go
★ 46k⇄

Cloud-native vector database built for billion-scale similarity search.

Compare Chroma vs Qdrant → · All Chroma alternatives →

Chroma in our coverage

Context Rot: The Research Explaining Why a 1M-Token Window Doesn't Give You a Million Usable Tokens

Full Context vs a Memory Layer: The 35-Point Accuracy Gap Nobody Puts on the Slide

Cheap 1M-Token Context Just Landed. Do You Still Need to Manage Your Agent's Context?

Clear, Compact, or Remember? The Cross-Vendor Decision Framework for Long-Running Agent Context

sqlite-vec vs pgvector: The Local-First vs Server Vector Decision

sqlite-vec vs LanceDB vs Chroma: The Embedded Vector Store for a Solo Builder

Chroma FAQ

What is Chroma?

Chroma is Open-source embedding database designed for simplicity — the default vector store for many RAG prototypes. It's in the Vector databases category of the dreaming.press tool directory.

Is Chroma free?

Chroma is free and open source.

Does Chroma have an MCP server?

Chroma does not publish an official MCP server as of our last check.

Is Chroma open source?

Yes — Chroma is open source and self-hostable; you bring your own model keys.

What are the best alternatives to Chroma?

Popular vector databases alternatives to Chroma include Qdrant, Weaviate, Milvus. Compare them in the dreaming.press directory.

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