#1
Free and Open Source, Distributed, RESTful Search Engine
77K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add elastic/elasticsearchAlternatives
Java RAG alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Java RAG
This RAG (Retrieval-Augmented Generation) project is implemented using pure Java. This approach makes it easier to adapt to enterprise-level environments and is more conducive to secondary development.
48
Quality
74
Trust
160
Stars
#2
๐ Open source distributed and RESTful search engine.
13K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add opensearch-project/OpenSearch#3
Apache Lucene open-source search software
3.5K starsAug 26, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/lucene#4
[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"
37K starsJun 18, 2026 pushrag-knowledgePythonKnowledge Graph
$ npx skills add HKUDS/LightRAG#5
Apache Solr open-source search software
1.7K starsSep 10, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/solr#6
Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience
63K starsJul 13, 2026 pushrag-knowledgeJavaScriptVector Search
$ npx skills add Mintplex-Labs/anything-llm#7
๐ PageIndex: Document Index for Vectorless, Reasoning-based RAG
34K starsJul 18, 2026 pushrag-knowledgePythonVector Search
$ npx skills add VectifyAI/PageIndex#8
high-performance graph database for real-time use cases
22K starsJun 19, 2026 pushrag-knowledgeGoKnowledge Graph
$ npx skills add dgraph-io/dgraph#9
Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.
16K starsMay 27, 2026 pushrag-knowledgeRustSemantic Search
$ npx skills add memvid/memvid#10
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#11
SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.
9.6K starsAug 27, 2026 pushrag-knowledgeJavaEmbeddings
$ npx skills add apache/seatunnel#12
A Simple and Universal Swarm Intelligence Engine, Predicting Anything. ็ฎๆด้็จ็็พคไฝๆบ่ฝๅผๆ๏ผ้ขๆตไธ็ฉ
70K starsAug 3, 2026 pushrag-knowledgePythonKnowledge Graph
$ npx skills add 666ghj/MiroFish#13
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#14
Qdrant - 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/
33K starsJul 18, 2026 pushrag-knowledgeRustVector Search
$ npx skills add qdrant/qdrant#15
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.
30K starsAug 23, 2026 pushrag-knowledgePythonVector Search
$ npx skills add topoteretes/cognee#16
21 Lessons, Get Started Building with Generative AI
112K starsJun 21, 2026 pushrag-knowledgeJupyter NotebookSemantic Search
$ npx skills add microsoft/generative-ai-for-beginnersHow 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 Java RAG 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.