What is the main difference between Milvus and Weaviate?

Milvus 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: Milvus or Weaviate?

The choice between Milvus 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 Milvus to Weaviate?

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

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Milvus vs Weaviate

Learn how Milvus 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.

Milvus

Open-source vector database optimized for similarity search, scaling to billions of vectors with minimal performance loss

Visit Milvus Read more

46,563stars+249(+0.5%)

Last 30 days

Last commit
8 hours ago
Repository age
7 years
Version
v3.0.5
License
Apache-2.0
Self-hosted
Yes
Repository
milvus-io/milvus

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

16,934stars+72(+0.4%)

Last 30 days

Last commit
8 hours ago
Repository age
11 years
Version
v1.40.3
License
BSD-3-Clause
Self-hosted
Yes
Repository
weaviate/weaviate

Detailed Comparison

Both Milvus 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.

Milvus wins

Community & Popularity

Milvus leads in popularity with 46,563 stars vs 16,934 stars for Weaviate. The 175% higher star count indicates stronger community adoption. In terms of developer contributions, Milvus has 4,325 forks, indicating strong developer engagement.

Comparable

Growth Momentum

Milvus and Weaviate are moving at much the same rate, adding 249 stars and adding 72 stars respectively over the last 30 days (+0.5% vs +0.4%). Neither is pulling away from the other on momentum alone.

Comparable

Development Activity

Both projects show recent activity, with Milvus last updated 8 hours ago and Weaviate 8 hours ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, Bash, Python, Golang, C. However, they differ in their additional technology choices: Milvus uses CSS, Rust, Objective-C, C++.

Weaviate wins

Project Maturity

Weaviate has been in development longer, starting 11 years ago, compared to Milvus which began 7 years ago. This 3.5-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 Milvus's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable