The best free alternative to Algolia is Elasticsearch, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Algolia and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Algolia are OpenSearch, Apache Solr, Typesense and Google Custom Search .
Unmatched relevance. Real-time insights. Anything is possible — when the precision of search meets the intelligence of AI.
OpenSearch is a community-driven, open source search and analytics suite derived from Apache 2.0 licensed Elasticsearch 7.10.2 & Kibana 7.10.2. It consists of a search engine daemon, and a visualization and user interface, OpenSearch Dashboards.
Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and JSON APIs. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document handling.
Adds a customizable search box to your web pages and show fast, relevant results powered by Google Search. It is useful in the ways that is free, but has quite bad crawlers for YOUR website.
Simplify how agents connect to enterprise data. Build high-impact AI apps with one centralized solution for agentic retrieval-augmented generation (RAG) workflows.
Open source search server designed to be fast, scalable and with powerful and accurate full-text search capabilities derived from Sphinx search project.
Chili Search replaces the WordPress default search with a lightning fast, full-ajax and accurate search.
Redisearch implements a search engine on top of Redis, but unlike other Redis search libraries, it does not use internal data structures like sorted sets.
The goal of ItemsAPI is creating search application without spending time for backend. You just provide json data and your backend is ready to go.
Vespa is an engine for low-latency computation over large data sets. It stores and indexes your data such that queries, selection and processing over the data can be performed at serving time.
Open-source neural search framework for text, images, audio, or video. Leverages pre-trained neural network algorithms to index and query data without need for complex rules and fragile pipelines.
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Much more powerful configuration options, however heavly developer involvement required.