Best Custom Search Engine Products in 2025

Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

Key Algolia features:

Speed Ease of Integration Customizable Relevance Scalability

Open Source

Elasticsearch is an open source, distributed, RESTful search engine.

Key ElasticSearch features:

Scalability Real-Time Data Full-Text Search Complex Query Support

Typo tolerant, delightfully simple, open source search 🔍.

Key Typesense features:

High Performance Easy to Set Up Real-Time Indexing Open Source

Open Source

Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...

Key Apache Solr features:

Scalability Flexibility Rich Feature Set Community and Documentation

Open Source

Site Search 360 enhances and improves your built-in CMS or product search with autocompletion, semantic search, filters, facets, detailed analytics, and a whole lot of customization options.

Key Site Search 360 features:

Easy to Set-up and use Clean UI Search Functionality Semantic Search

freemium $9.0 / Monthly ("1,500 pages/products", "2,000 monthly searches")

Ultra relevant, instant, and typo-tolerant full-text search API.

Key Meilisearch features:

Speed Relevance Ease of Use Open Source

Open Source

The simplest way to add search to your website or application. Sign up for free.

Key Swiftype features:

Customizable Search Easy Integration Advanced Analytics Scalability

Store, search, rank and organize big data.

Key Vespa.ai features:

Scalability Flexibility Real-time Data Processing Open Source

Open Source

Swiftype Site Search helps to sell more, get the right answer to more people on the platform and surface relevant content for readers and followers.

Key Swiftype Site Search features:

Ease of Integration Customizable Results User-Friendly Dashboard Advanced Analytics

Google Custom Search enables you to create a search engine for your website, your blog, or a collection of websites.

Key Google Custom Search features:

Ease of Integration Advanced Search Capabilities Customization Options Cost-Effective

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.

Key OpenSearch features:

Open Source Elasticsearch Compatibility Community Driven Development Enhanced Security Features

Search across all your company's content in G Suite.

Key Google Cloud Search features:

Integration with Google Workspace AI and Machine Learning Security Enterprise Search

Vector database built for scalable similarity search Open-source, highly scalable, and blazing fast.

Key Milvus features:

High Performance Scalability Flexible Deployment Community and Support

Open Source free