Jina.ai

Meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

Qdrant

Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

Orama

🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.

Quickwit

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

Typesense

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

AppBase

Search UI components for React and Vue

SeMI's Weaviate

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

Zinc

ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.

OpenSearch

🔎 Open source distributed and RESTful search engine.