Open-source Searchspring alternatives

Meilisearch is a search engine exposed through an API, written in Rust and designed to be dropped into applications and websites. It aims to give developers a good search experience quickly, with features that work out of the box rather than needing extensive tuning.

Its capabilities include hybrid search that combines semantic and full-text results, search-as-you-type with a target response time under 50 milliseconds, typo tolerance, filtering and faceted search, sorting and geosearch. The topics also describe it as a vector database for AI use cases. The project maintains example applications for movies, ecommerce with facets and filters, conversational home booking, personalization and a multi-tenant CRM, which show how the features fit together.

The license is listed as 'Other', so confirm the terms for your use case. Meilisearch can be run on your own infrastructure, and Meilisearch Cloud offers it as a managed service. It is a common pick for site search, product catalogs and in-app search where a lighter alternative to a large cluster is attractive.

Typesense is an open-source search engine for building fast, typo-tolerant search experiences in websites and applications. It is pitched as an open-source substitute for Algolia and Pinecone, and as a simpler option than Elasticsearch. It keeps its index in memory and is written in C++.

The project's feature topics include typo tolerance and fuzzy matching, full-text search, faceting, geosearch, synonyms, merchandising rules and instant search, and it supports semantic and hybrid search. Public demos let you try it on large datasets, such as 32 million songs from MusicBrainz, 28 million books from OpenLibrary, a recipe set, Linux kernel commit messages, an ecommerce store experience, a geosearch listing browser and semantic search over Hacker News comments.

Typesense is licensed under GPL-3.0 and can be run on your own servers, and a managed Typesense Cloud service is also available. Documentation, a roadmap, a Slack community and video introductions are provided. It suits developers who want Algolia-style search with the option to self-host and keep costs predictable.

Marqo builds AI-native search and product discovery for online brands in categories such as fashion, beauty, electronics and home goods. Using semantic search and personalization, it learns from browsing clicks, orders and other events to infer what shoppers want and return relevant search results and recommendations.

The vendor says its platform helps commerce teams improve search relevance, raise conversion and order value, and reduce manual merchandising through automated ranking and optimization. The repository also hosts the open-source search engine project, with topics covering multi-modal search and machine learning. A notice at the top of the README clarifies the status of the open-source project relative to the commercial platform, so read it before adopting the code.

The code is written in Python under the Apache-2.0 license. You can run the open-source engine yourself, or buy the managed ecommerce platform from the vendor. It suits online retailers and developers evaluating vector search for product catalogs.

ElasticSuite, from Smile, is a search and merchandising module for Magento 2 built on Elasticsearch. It is installed into a Magento store to power catalog search, autocomplete and faceted navigation, and to give merchandisers tools for controlling how products are ranked and displayed.

The project maintains a compatibility matrix because Magento 2.4.6 introduced Elasticsearch 8 and OpenSearch 2: different ElasticSuite releases line up with different Magento versions, from the 2.9.x line for older stores up to 2.12.x for the newest, and with Elasticsearch 7 and 8 or OpenSearch 1 to 3. Stores using Magento Commerce B2B features need separate Shared Catalog and Quick Order modules.

A set of free additional modules is also published on GitHub, including CMS page search, rating filters and sorting, a retail suite with a store locator and per-store price segmentation, and target rules computed through Elasticsearch. ElasticSuite is written in PHP and licensed under OSL-3.0, and it needs your own Magento and search cluster.