Directory

5 tools

Chroma · Vector databases

Open-source embedding database with a minimal Python and JavaScript API, usable in-process, as a server or through Chroma Cloud

Apache-2.0Open sourceUsage-basedLocalSelf-hostedNov 2, 2026

Meili SAS · Vector databases

Rust search engine for application search-as-you-type with typo tolerance, faceting and hybrid semantic search; MIT core plus BSL enterprise parts

MIT AND BUSL-1.1Open sourceFreeSelf-hostedNov 2, 2026

Zilliz / LF AI & Data Foundation · Vector databases

Open-source vector database from Zilliz with Lite, Standalone and Distributed deployments, many index types and GPU acceleration

Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026

OpenSearch Software Foundation (Linux Foundation) · Vector databases

Apache-2.0 search and analytics suite forked from Elasticsearch and Kibana, governed by the OpenSearch Software Foundation

Apache-2.0Open sourceFreeSelf-hostedBroken

Weaviate B.V. · Vector databases

Open-source vector database in Go with pluggable vectorizer modules, hybrid BM25 and vector search, multi-tenancy and a managed cloud

BSD-3-ClauseOpen sourceFreemiumSelf-hostedBroken

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