QnA Maker

MeiliSearch

Fast, typo tolerant, fuzzy search engine for building delightful search experiences ⚡ 🔍 ✨ An Open Source alternative to Algolia and an Easier-to-Use alternative to ElasticSearch.

Algolia

Real-time vector search engine

Vector database for AI applications

Cloud native full text search

AWS Kendra

Google Vertex

Elastic Cloud

🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

Search UI components for React and Vue

:mag: Haystack is an open source NLP framework to interact with your data using Transformer models and LLMs (GPT-4, ChatGPT and alike). Haystack offers production-ready tools to quickly build complex decision making, question answering, semantic search, text generation applications, and more.

🔮 Build multimodal AI services via cloud native technologies

Qdrant - Vector Database for the next generation of AI applications. Also available in the cloud https://cloud.qdrant.io/

SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.

Weaviate is an open source vector database that stores both objects and vectors, allowing for combining vector search with structured filtering with the fault-tolerance and scalability of a cloud-native database, all accessible through GraphQL, REST, and various language clients.

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