opensearch-project/OpenSearch Alternatives

Choose for the original Elasticsearch API and ecosystem with near drop-in compatibility to OpenSearch.

Free and Open Source, Distributed, RESTful Search Engine

Choose for a lightweight single-node search API with typo-tolerance when you don't need distributed scale or Elasticsearch compatibility.

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

Choose for in-memory, typo-tolerant, low-latency search with simpler operations, accepting GPL-3.0 and a non-Elasticsearch API.

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

Choose for SQL-based full-text and vector search with real-time indexing when you don't require an Elasticsearch-compatible API.

Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.

Choose when you want search embedded in a JS runtime or browser with no separate server.

🌌 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.

Choose when you already run Redis and want full-text and vector search as a Redis module.

A query and indexing engine for Redis, providing secondary indexing, full-text search, vector similarity search and aggregations.

Choose as an embeddable Rust search library instead of running a standalone search server.

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

Choose for client-side full-text search in the browser or Node.js without operating a server.

Next-generation full-text search library for Browser and Node.js

Choose for full-text search embedded directly in a PHP application.

A fully featured full text search engine written in PHP

Choose for a Lucene-based search server with a different REST API and strong faceting when Elasticsearch compatibility is not required.

Apache Solr open-source search software

Choose for a lightweight RESTful search server in Python backed by SQLite when you need minimal resources.

RESTful search server written in Python, powered by SQLite.

Choose for a very lightweight, schema-less search backend running on a few MB of RAM.

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

Choose for a Rust-based full-text search engine with a different API if you prefer a lightweight standalone service.

A full-text search engine in rust

Choose only if you need a minimal-resource Go search server and can accept an archived/unmaintained project.

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

Choose for simple client-side search in static sites, though it is stale and not a server.

A bit like Solr, but much smaller and not as bright