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Repositories in this selection 58 · UTC 2026-11-04
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1—Eelastic / elasticsearchFree and Open Source, Distributed, RESTful Search EngineJavaNOASSERTION · Restricted / unknownInsufficient rank history78,47226,241——2026-11-03
2—Ssearxng / searxngAggregate results from multiple sources through a self-hosted metasearch service.PythonAGPL-3.0 · Share derivative sourceInsufficient rank history39,1363,571——2026-11-02
3—IItzCrazyKns / VaneVane is an AI-powered answering engine.TypeScriptMIT · PermissiveInsufficient rank history37,9754,226——2026-09-01
4—Qqdrant / qdrantQdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/RustApache-2.0 · PermissiveInsufficient rank history35,3892,793——2026-11-02
5—Ttypesense / typesenseOpen 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 experiencesC++GPL-3.0 · Share derivative sourceInsufficient rank history27,0761,024——2026-10-30
6—Vvaleriansaliou / sonic🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.RustMPL-2.0 · Share derivative sourceInsufficient rank history21,373621——2026-10-30
7—Xxerj-org / xerjAI search engine and MCP server for bots and agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora.RustApache-2.0 · PermissiveInsufficient rank history18,8071,434——2026-11-02
8—Zzincsearch / zincsearchZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.GoNOASSERTION · Restricted / unknownInsufficient rank history17,932782——2026-09-16
9—Wweaviate / weaviateWeaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.GoNOASSERTION · Restricted / unknownInsufficient rank history16,9341,433——2026-11-02
10—Qquickwit-oss / tantivyTantivy is a full-text search engine library inspired by Apache Lucene and written in RustRustMIT · PermissiveInsufficient rank history16,3891,034——2026-11-02
11—Aalibaba / zvecA lightweight, lightning-fast, in-process vector databaseC++Apache-2.0 · PermissiveInsufficient rank history16,1761,015——2026-11-02
12—Oopensearch-project / OpenSearch🔎 Open source distributed and RESTful search engine.JavaApache-2.0 · PermissiveInsufficient rank history13,9533,121——2026-11-03
13—Nnextapps-de / flexsearchNext-generation full-text search library for Browser and Node.jsJavaScriptApache-2.0 · PermissiveInsufficient rank history13,816528——2026-06-28
14—Ssearx / searxPrivacy-respecting metasearch enginePythonAGPL-3.0 · Share derivative sourceInsufficient rank history13,5631,687——2026-05-14
15—Nneuml / txtai💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflowsPythonApache-2.0 · PermissiveInsufficient rank history13,062960——2026-11-01
16—PPaddlePaddle / PaddleNLPEasy-to-use and powerful LLM and SLM library with awesome model zoo.PythonApache-2.0 · PermissiveInsufficient rank history12,9873,019——2026-05-23
17—Mmanticoresoftware / manticoresearchOpen-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.C++GPL-3.0 · Share derivative sourceInsufficient rank history12,074655——2026-11-02
18—Zzaidmukaddam / sciraScira (Formerly MiniPerplx) is a minimalistic AI-powered search engine that helps you find information on the internet and cites it too. Powered by Vercel AI SDK!TypeScriptAGPL-3.0 · Share derivative sourceInsufficient rank history11,9081,498——2026-08-12
19—Llancedb / lancedbDeveloper-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.RustApache-2.0 · PermissiveInsufficient rank history11,8311,150——2026-11-02
20—Qquickwit-oss / quickwitCloud-native OSS search engine for observabilityRustApache-2.0 · PermissiveInsufficient rank history11,763623——2026-11-03
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