#1
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.
21K starsJun 12, 2026 pushrag-knowledgeRustSearch
$ npx skills add valeriansaliou/sonicAlternatives
Nucliadb alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Nucliadb
NucliaDB, The AI Search database for RAG
75
Quality
74
Trust
716
Stars
#2
SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.
32K starsJun 16, 2026 pushrag-knowledgePythonSearch
$ npx skills add searxng/searxng#3
Easy to use open source fast database for search | Good alternative to Elasticsearch | Drop-in replacement for E in the ELK stack
12K starsJun 16, 2026 pushrag-knowledgeC++Search
$ npx skills add manticoresoftware/manticoresearch#4
A self-hosted, ad-free, privacy-respecting metasearch engine
12K starsAug 14, 2026 pushrag-knowledgePythonSearch
$ npx skills add benbusby/whoogle-search#5
Free and Open Source, Distributed, RESTful Search Engine
77K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add elastic/elasticsearch#6
Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust
15K starsJun 16, 2026 pushrag-knowledgeRustSearch
$ npx skills add quickwit-oss/tantivy#7
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
13K starsJun 22, 2026 pushrag-knowledgePythonSemantic Search
$ npx skills add neuml/txtai#8
🔎 Open source distributed and RESTful search engine.
13K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add opensearch-project/OpenSearch#9
Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.
11K starsJun 16, 2026 pushrag-knowledgeRustSearch
$ npx skills add quickwit-oss/quickwit#10
Next-generation full-text search library for Browser and Node.js
14K starsMay 29, 2026 pushrag-knowledgeJavaScriptSearch
$ npx skills add nextapps-de/flexsearch#11
Apache Lucene open-source search software
3.5K starsAug 26, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/lucene#12
Apache Solr open-source search software
1.7K starsSep 10, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/solr#13
A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
59K starsJul 18, 2026 pushrag-knowledgeRustSemantic Search
$ npx skills add meilisearch/meilisearch#14
high-performance graph database for real-time use cases
22K starsJun 19, 2026 pushrag-knowledgeGoKnowledge Graph
$ npx skills add dgraph-io/dgraph#15
A Simple and Universal Swarm Intelligence Engine, Predicting Anything. 简洁通用的群体智能引擎，预测万物
70K starsAug 3, 2026 pushrag-knowledgePythonKnowledge Graph
$ npx skills add 666ghj/MiroFish#16
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
11K starsJun 15, 2026 pushrag-knowledgeHTMLSemantic Search
$ npx skills add lancedb/lancedbHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Nucliadb if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.