Opensolr
AI site search and RAG API built on managed Apache Solr hosting
Opensolr runs Apache Solr as a fully managed service and adds the surrounding tooling: a web crawler, hybrid BM25 + kNN search, GPU embeddings, a RAG API, query analytics, backups, teams, query elevation, search tuning and facets. It offers free modules for Drupal and WordPress, packages for LangChain, LlamaIndex, Haystack and Laravel Scout, an MCP server for AI agents, and a REST API for other languages.
12 alternatives to Opensolr
Ranked by how well each tool replaces Opensolr: shared features, audience, price and popularity.
Open source, multi-modal search platform built on Apache Lucene
Covers 0 of 15 key features and is open source.
Open source68 out of 100 match—Unified search and AI retrieval platform.
Covers 1 of 15 key features and is open source.
Open source60 out of 100 match$20/moOpen-source search and analytics suite for ingesting, searching, and visualizing data.
Covers 0 of 15 key features and is open source.
Open source59 out of 100 match—Fast, easy on-site search with semantic and full-text capabilities.
Covers 0 of 15 key features.
Free plan58 out of 100 match$9/moAI search and conversational content discovery platform for websites
Covers 0 of 15 key features.
57 out of 100 match$119/moSupercharge your search.
Covers 0 of 15 key features and is open source.
Free planOpen source57 out of 100 matchFree- 56 out of 100 matchFree
Open source search engine library in C++ with bindings for many languages.
Covers 0 of 15 key features and is open source.
Open source56 out of 100 match—- 56 out of 100 match$666.67/mo
Open-source, typo-tolerant search engine for site and app search
Covers 0 of 15 key features and is open source.
Free planOpen source55 out of 100 matchUsage-basedOpen-source hybrid search system handling ingestion, embedding, and hybrid retrieval.
Covers 0 of 15 key features and is open source.
Open source54 out of 100 match—- 54 out of 100 match$359/mo