Open-source search engines are crucial for enterprises and startups as they offer freedom, data privacy, and self-hosting capabilities. These search engines allow users to interact with all the content on a website, retrieving and displaying data when a user searches for information. Here are some notable open-source search engines:
Swirl
Swirl is an open-source search platform written in Python that searches multiple content sources simultaneously and returns AI-ranked results. It can connect to various data sources like SQL & NoSQL databases, Google BigQuery, Microsoft 365, Jira, and more. Swirl also integrates with AI and LLMs like ChatGPT to generate insights based on your data. It comes with an Apache 2.0 License and is easy to start.
Apache Solr
Apache Solr is an enterprise search platform written in Java, built on top of the Apache Lucene search library. It provides features for searching and indexing documents, including real-time indexing and distributed search. Solr can be deployed in a distributed cluster to scale to meet the needs of large enterprises.
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OpenSearch
OpenSearch is a community-driven, Apache 2.0-licensed open source search and analytics suite that makes it easy to ingest, search, visualize, and analyze data.
Open Source Google Search Alternatives: 25+ Web Search Engines
- Searx. Linux. Online. Android. Self-Hosted. Cloudron. ... 113 Searx alternatives. Searx is a …
- SearXNG. Linux. Arch Linux. Fedora. Ubuntu. Debian. Docker. Red Hat. ... 107 SearXNG …
- YaCy. Mac. Windows. Linux. Online. Self-Hosted. ... 98 YaCy alternatives. YaCy is a free …
- MetaGer. Online. Android. F-Droid. Tor. ... 91 MetaGer alternatives. MetaGer is an open …
- Mwmbl Search. Online. ... 63 Mwmbl Search alternatives. Mwmbl is a non-profit, ad-free, …
Typesense | Open Source Alternative to Algolia + Pinecone
Typesense is a modern, blazing-fast, developer-friendly, open source search engine. It uses cutting-edge algorithms that take advantage of the latest advances in Hardware Capabilities & …
GitHub - opensearch-project/OpenSearch: Open source …
53 rows · OpenSearch is a community-driven project that provides a distributed and RESTful …
Best Open Source Search Engines 2025 - SourceForge
Aug 12, 2013 · Browse and download free open source search engines and projects on SourceForge.net. Find solutions for internet search, text search, digital library, spell checker, …
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5 Open-Source Search Engines For your Website
Jul 5, 2021 · Learn about five popular open-source search engines that can be used to build search functionality in your website. Compare their features, advantages, and use cases, such as Apache Lucene, Apache Solr, …
15 Free Full-Text Search Engine Solutions for …
Dec 12, 2020 · Typesense is a free open-source search engine with user and developer-friendly functionalities. It supports full-text search, automatic suggest, ranking results, allows a wide range of filters and facets, and it's also a typo …
Meilisearch: Open-source AI search engine
Meilisearch: A powerful, open-source search engine offering fast and relevant full-text searches. Enhance your search capabilities with features like facet search, semantic search, hybrid search, and geosearch.
Open-Source Search Engine with Apache Lucene / Solr
Easy full text search in multiple data sources and many different file formats: Just enter a search query (which can include powerful search operators) and navigate through the results. Based …
Sphinx | Open Source Search Engine
Sphinx is an open source full text search server, designed with performance, relevance (search quality), and integration simplicity in mind. Sphinx lets you either batch index and search data …
mwmbl/mwmbl: An open source, non-profit web search engine
Mwmbl is a community-driven project to create a replacement for commercial search engines such as Google and Bing. It uses a giant hash map index and a distributed crawling system to …
OpenSearchServer | Open Source Search Engine and Search API
Read, comment, contribute. Source code, issues tracker, forums.
Apache Lucene - Welcome to Apache Lucene
Lucene is the search core of both Apache Solr™ and Elasticsearch™. Our core algorithms along with the Solr search server power applications the world over, ranging from mobile devices to …
Gigablast - Alternate Web Search
Gigablast is a powerful alternative web search engine designed for privacy, speed, and efficiency. It offers access to a vast index of websites for the users.
open source search engines - AlternativeTo
Feb 13, 2024 · Stract is an open source search engine where the user has the ability to see exactly what is going on and customize almost everything about their search results. It's a …
Customize your internet with an open source search engine
Feb 7, 2020 · Learn how to install and use YaCy, a distributed and anonymous web indexer and search engine. YaCy lets you customize your internet with an alternative to Google or …
8 Best Free and Open Source Search Engines for Big Data
Aug 20, 2023 · There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and …
Meilisearch: Free Open Source AI Powered Search Engine
Feb 17, 2025 · Meilisearch is redefining search technology by combining the best aspects of full-text and AI-powered search into an open-source, easy-to-deploy solution. Its speed, accuracy, …
11 Alternatives to Elasticsearch, OpenSearch, and Solr - Sematext
Mar 19, 2025 · In this article, we will explore 11 small search platforms, delving into their major features, pros, and cons. Whether you’re seeking lightning-fast performance, advanced …
GitHub - sentient-agi/OpenDeepSearch
Semantic Search 🧠: Leverages Crawl4AI and semantic search rerankers (such as Qwen2-7B-instruct and Jina AI) to provide in-depth results; Two Modes of Operation ⚡: . Default Mode: …
Report: OpenSearch Bests ElasticSearch at Vector Modeling
Mar 18, 2025 · A Trail of Bits report found OpenSearch outperformed Elasticsearch in vector search and general workloads, thanks to OpenSearch's support for multiple search engines, …
Meet Open Deep Search (ODS): A Plug-and-Play Framework …
Mar 27, 2025 · The rapid advancements in search engine technologies integrated with large language models (LLMs) have predominantly favored proprietary solutions such as Google's …
Sentient introduces an open-source AI surpassing Perplexity
4 days ago · It is the first-ever open-source AI search framework to surpass Perplexity, including its advanced version, Perplexity Sonar Reasoning Pro, in terms of search and reasoning …
[2503.20201] Open Deep Search: Democratizing Search with …
Mar 26, 2025 · We introduce Open Deep Search (ODS) to close the increasing gap between the proprietary search AI solutions, such as Perplexity's Sonar Reasoning Pro and OpenAI's GPT …
We’ve outsourced our confirmation biases to search engines
Mar 25, 2025 · By prioritizing results from high-quality, credible sources, a search engine could ensure that people found accurate information more frequently, potentially opening them to the …
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