#1
PISA: Performant Indexes and Search for Academia
1.1K starsMay 6, 2026 pushrag-knowledgeC++Search
$ npx skills add pisa-engine/pisaAlternatives
Opensse alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Opensse
Open Sketch Search Engine－ 3D object retrieval based on sketch image as input
51
Quality
72
Trust
970
Stars
#2
🔎 Open source distributed and RESTful search engine.
13K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add opensearch-project/OpenSearch#3
Privacy-respecting metasearch engine
14K starsMay 14, 2026 pushrag-knowledgePythonSearch
$ npx skills add searx/searx#4
Search plugins for qBittorrent search feature
6.3K starsMay 25, 2026 pushrag-knowledgePythonSearch
$ npx skills add qbittorrent/search-plugins#5
Apache Lucene open-source search software
3.5K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/lucene#6
rats-search: BitTorrent P2P multi-platform search engine for Desktop and Web servers with integrated torrent client
1.9K starsJun 3, 2026 pushrag-knowledgeC++Search
$ npx skills add librats/rats-search#7
Free and Open Source, Distributed, RESTful Search Engine
77K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add elastic/elasticsearch#8
🦔 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/sonic#9
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#10
Scira (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!
12K starsMar 20, 2026 pushrag-knowledgeTypeScriptSearch
$ npx skills add zaidmukaddam/scira#11
A flexible, performant and reliable search database without the AI bullshit.
1.4K starsOct 14, 2025 pushrag-knowledgeRustSearch
$ npx skills add lnx-search/lnx#12
A full-text search engine in rust
4.3K starsJan 19, 2024 pushrag-knowledgeRustSearch
$ npx skills add toshi-search/Toshi#13
A fast file search utility for Unix-like systems based on GTK3
4.2K starsJun 15, 2026 pushrag-knowledgeCSearch
$ npx skills add cboxdoerfer/fsearch#14
Timestamp Retrieval for Anime Clips Everywhere
5.0K starsApr 6, 2026 pushrag-knowledgeSearchClaude Code
$ npx skills add soruly/trace.moe#15
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#16
Apache Lucene and Solr open-source search software
4.4K starsMay 15, 2026 pushrag-knowledgeSearchClaude Code
$ npx skills add apache/lucene-solrHow 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 Opensse 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.