What is the main difference between Chroma and Weaviate?

Chroma and Weaviate are both vector databases but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: Chroma or Weaviate?

The choice between Chroma and Weaviate depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from Chroma to Weaviate?

Migration between Chroma and Weaviate is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

Openlane – Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.

Learn More

Chroma vs Weaviate

Learn how Chroma and Weaviate differ in their key features, development activity, technology stack and community adoption, so you can decide which of these vector databases is best for you.

Chroma

Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.

Visit Chroma Read more

29,403stars+221(+0.8%)

Last 30 days

Last commit
10 hours ago
Repository age
4 years
Version
1.5.9
License
Apache-2.0
Self-hosted
Yes
Repository
chroma-core/chroma

Weaviate

Open-source vector database designed for building powerful, production-ready AI applications with hybrid search capabilities and flexible deployment options.

Visit Weaviate Read more

16,859stars+101(+0.6%)

Last 30 days

Last commit
4 hours ago
Repository age
11 years
Version
v1.39.7
License
BSD-3-Clause
Self-hosted
Yes
Repository
weaviate/weaviate

Detailed Comparison

Both Chroma and Weaviate have their unique strengths and serve similar purposes effectively. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Chroma wins

Community & Popularity

Chroma leads in popularity with 29,403 stars vs 16,859 stars for Weaviate. The 74% higher star count indicates stronger community adoption. In terms of developer contributions, Chroma has 2,538 forks, indicating strong developer engagement.

Comparable

Growth Momentum

Chroma and Weaviate are moving at much the same rate, adding 221 stars and adding 101 stars respectively over the last 30 days (+0.8% vs +0.6%). Neither is pulling away from the other on momentum alone.

Comparable

Development Activity

Both projects show recent activity, with Chroma last updated 10 hours ago and Weaviate 4 hours ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, Bash, Python, Golang. However, they differ in their additional technology choices: Chroma uses CSS, Typescript, JSX, Next.js, Rust while Weaviate leverages C.

Weaviate wins

Project Maturity

Weaviate has been in development longer, starting 11 years ago, compared to Chroma which began 4 years ago. This 6.6-year head start suggests Weaviate may have more mature features and established processes.

Weaviate wins

Licensing

Weaviate uses the BSD-3-Clause license, which is more permissive than Chroma's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable