client-side full-text search library
FlexSearch is a fast, flexible full-text search library for JavaScript (browser and Node.js) supporting fuzzy, multi-field, tag, and persistent search.
Same problem, same approach. Swapping one for another is a config change, not a rewrite.
Choose when you need a very small (2kb) TypeScript search engine that runs in browser/server/edge with full-text and vector search; API differs from FlexSearch.
🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
Choose when you need a distributed, scalable server-side search engine with REST API and heavy indexing; overkill for client-side use.
Free and Open Source, Distributed, RESTful Search Engine
Choose when you need a lightweight server-side search API with typo-tolerance and easy setup; not an in-browser library.
A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
Choose when you need a fast in-memory server-side search with typo-tolerance and low latency; requires running a separate service.
Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences
Choose when you need an open-source Elasticsearch-compatible distributed search engine with community governance.
🔎 Open source distributed and RESTful search engine.
Choose when you need a high-performance search database with SQL and full-text/vector support; heavier than FlexSearch.
Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.
Choose when you already run Redis and need full-text/vector search inside your database; not a standalone library.
A query and indexing engine for Redis, providing secondary indexing, full-text search, vector similarity search and aggregations.
Choose when you want the combined Lucene library + Solr server for Java/JVM projects; heavier and server-based.
Apache Lucene and Solr open-source search software
Choose when you need a battle-tested Java search library to embed in JVM applications; different language and ecosystem.
Apache Lucene open-source search software
Choose when you need a Rust full-text search library inspired by Lucene; different language, high performance.
Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust
Choose when you need a full-text search engine in PHP; different language.
A fully featured full text search engine written in PHP
Choose when you need a standalone Java search server with faceting and full-text; not a client-side library.
Apache Solr open-source search software
A Python RESTful search server using SQLite; choose if you need a lightweight Python-based search server.
RESTful search server written in Python, powered by SQLite.
An earlier or more limited way to do the job. Still the right call when you need something small, proven, or CPU-only.
An archived Go search server; choose only if you need a minimal Elasticsearch-like server and can self-maintain.
ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.
A classic but unmaintained client-side full-text search library; choose only if you need a simple offline search with no updates.
A bit like Solr, but much smaller and not as bright
A lightweight JavaScript fuzzy-search library; choose when you only need fuzzy string matching without full-text features.
Lightweight fuzzy-search, in JavaScript
A fast, focused JavaScript fuzzy matcher; choose for Sublime-like fuzzy search, not for full-text indexing.
Fast SublimeText-like fuzzy search for JavaScript.
A tiny Go fuzzy-search library; choose if you need a simple substring/fuzzy match in Go, not full-text.
:pig: Tiny and fast fuzzy search in Go
A TypeScript fuzzy search library for frontend; choose for fuzzy matching, not for full-text indexing or multi-field search.
A fast, accurate and multilingual fuzzy search library for the frontend.
A JavaScript port of the fzf fuzzy matcher; choose for Vim-like fuzzy matching, not full-text.
Do fuzzy matching using FZF algorithm in JavaScript
A JavaScript fuzzy string matching library ported from fuzzywuzzy; choose for simple fuzzy ratios, not full-text.
Easy to use and powerful fuzzy string matching, port of fuzzywuzzy.
An old Node.js full-text search and document store; choose only for legacy Node projects, unmaintained.
A portable, persistent, electron-embeddable fulltext search + document store database for node.js
An unmaintained Elixir port of Elasticlunr; choose only for legacy Elixir applications.
Elasticlunr is a small, full-text search library for use in the Elixir environment. It indexes JSON documents and provides a friendly search interface to retrieve documents.
These projects were analysed and named flexsearch among their alternatives. The relationship is not symmetric — how flexsearch rates them is a separate judgement, made when flexsearch is analysed in its own right.
calls flexsearch “Choose when you need a faster, full-text client-side search library with a flexible API and smaller bundle.”
Lightweight fuzzy-search, in JavaScript
calls flexsearch “Choose it over lunr for faster indexing and query performance in client-side JavaScript.”
A bit like Solr, but much smaller and not as bright
calls flexsearch “when you need a fast, fully client-side full-text search for large document sets.”
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.
calls flexsearch “When you need full-text search in JavaScript in browser or Node without a server.”
Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust
calls flexsearch “Choose for client-side full-text search in the browser or Node.js without operating a server.”
🔎 Open source distributed and RESTful search engine.
calls flexsearch “When you need a fast client-side full-text search library for browser or Node.js with no server component.”
Free and Open Source, Distributed, RESTful Search Engine
calls flexsearch “Choose for client-side full-text search in JavaScript; browser-only, no server, full-text only.”
Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.