Best Open Source Search Engines using Python in 2026

Elasticsearch

The leading distributed search and analytics engine

Stars
76,550
Forks
25,851
Last commit
4 hours ago

Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.

Open Source Alternative to:

Algolia

Onyx

Unified AI-powered enterprise search across company data

Stars
27,694
Forks
3,682
Last commit
5 hours ago

An open-source platform that connects to 40+ apps to provide intelligent search and AI assistance across all company information

Open Source Alternative to:

Algolia

OpenSearch

Open-source search and analytics at enterprise scale

Stars
12,776
Forks
2,527
Last commit
4 hours ago

Community-driven, Apache 2.0-licensed search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale with AI/ML capabilities.

Open Source Alternative to:

Algolia

Quickwit

Lightning-fast search for massive datasets

Stars
11,094
Forks
537
Last commit
12 hours ago

High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.

Open Source Alternative to:

Algolia

Manticore Search

Lightning-fast open source search engine for big data

Stars
11,758
Forks
624
Last commit
13 hours ago

Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.

Open Source Alternative to:

Algolia

Swirl Search

Get instant answers from your company knowledge

Stars
2,998
Forks
283
Last commit
8 hours ago

AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.

Open Source Alternative to:

Algolia

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Elasticsearch

The leading distributed search and analytics engine

Stars
76,550
Forks
25,851
Last commit
4 hours ago

Elasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.

Open Source Alternative to:

Algolia

Onyx

Unified AI-powered enterprise search across company data

Stars
27,694
Forks
3,682
Last commit
5 hours ago

An open-source platform that connects to 40+ apps to provide intelligent search and AI assistance across all company information

Open Source Alternative to:

Algolia

OpenSearch

Open-source search and analytics at enterprise scale

Stars
12,776
Forks
2,527
Last commit
4 hours ago

Community-driven, Apache 2.0-licensed search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale with AI/ML capabilities.

Open Source Alternative to:

Algolia

Quickwit

Lightning-fast search for massive datasets

Stars
11,094
Forks
537
Last commit
12 hours ago

High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.

Open Source Alternative to:

Algolia

Manticore Search

Lightning-fast open source search engine for big data

Stars
11,758
Forks
624
Last commit
13 hours ago

Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.

Open Source Alternative to:

Algolia

Swirl Search

Get instant answers from your company knowledge

Stars
2,998
Forks
283
Last commit
8 hours ago

AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.

Open Source Alternative to:

Algolia

Open Source Search Engines using Python

A curated collection of the best open source specialized engines and platforms for implementing search functionality. using Python.