Free and open first
Best AI Search and Discovery Platforms Software in 2026
- 28 apps
- Research read 28 Sept 2026
- How the order is worked out
- 1
Vespa
Free plan Open source APILinuxMac+3Vespa offers varied search and ranking methods alongside self-managed and cloud deployment paths.
- 2
Algolia
Free plan AndroidAPIExtension+2Algolia pairs search APIs and developer libraries with tools for ranking, personalization, analytics, and merchandising.
- 3
- 4
Meilisearch
Free plan APILinuxMac+3Meilisearch offers multiple search approaches and deployment choices, with a free self-hosted option and paid cloud service.
- 5
OpenSearch
by OpenSearchFree plan APILinuxMac+3OpenSearch provides a free search and analytics suite with ingestion, visualization, and machine-learning capabilities.
- 6
- 7
- 8
Milvus
Free plan APILinuxSelf-hostedMilvus offers a free, open-source path from local vector search to large distributed deployments.
- 9
- 10
- 11
AddSearch
Free trial APIWebAddSearch offers a broad search stack, from managed widgets to APIs and AI features.
- 12
Amazon Kendra
Free trial APIWebKendra combines search, source connectors, analytics, and document enrichment, with retrieval features for generative AI workflows.
- 13
Google Vertex AI Search
Free trial AndroidAPIiPhone+1Agent Search offers broad data-source coverage, semantic retrieval, and generated answers for web and mobile experiences. Its paid query pricing and trial limits are central planning considerations.
- 14
- 15
Doofinder
Free trial APIWebDoofinder brings search, recommendations, merchandising, and conversational features into one ecommerce platform. Its request-based plans and paid-only model should be checked against expected usage.
6.1 Visit site - 16
Constructor
Paid AndroidAPIiPhone+1Constructor brings product discovery, shopper personalization, and merchandising tools together for retail ecommerce.
- 17
Elastic Cloud Enterprise
Paid APILinuxSelf-hosted+1ECE provides centralized management and high-availability features for self-managed Elasticsearch clusters across several deployment environments.
- 18
Luigi's Box
Free trial APIWebLuigi’s Box combines search, merchandising, recommendations and analytics for catalog-based businesses.
- 19
FactFinder
Paid APIWebChoose FactFinder if your eCommerce operation needs product discovery with merchandising controls, analytics and support for complex catalogs or B2B pricing.
- 20
HawkSearch
Paid APIWebHawkSearch combines AI search responses with catalog merchandising, product discovery, integrations, and developer APIs.
- 21
Glean Agent Builder
Paid WebGlean Agent Builder offers visual workflow creation, model choices, and connections to enterprise data under organizational permissions.
- 22
Syte
Paid AndroidAPIWebSyte combines visual search, recommendations, tagging, and merchandising in one platform.
- 23
LupaSearch
Paid APIWebChoose LupaSearch if your ecommerce business needs intent-aware product search, merchandising controls, and search analytics.
- 24
Unbxd
Paid AndroidAPIiPhone+1Netcore Unbxd combines search, catalog enrichment, merchandising, and omnichannel features for ecommerce retailers. Pricing is on request, so contact sales or schedule a demo to discuss it.
- 25
Marqo
Paid APIWebMarqo combines several ecommerce discovery functions, from personalized search to conversational product suggestions. Its pricing is not published, so interested teams need to request details.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price