PyPI · npm100Exceptionalhealth index

deepset-ai/haystackOpen-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
Python★ 26.5KSep 16, 2026
PyPI98Exceptionalhealth index

Unstructured-IO/unstructuredConvert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.
HTML★ 15.4K↓ 3.5M/moSep 16, 2026
Go · PyPI98Exceptionalhealth index

weaviate/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.
Go★ 16.8KSep 16, 2026
PyPI96Exceptionalhealth index

NVIDIA/raftRAFT contains fundamental widely-used algorithms and primitives for machine learning and information retrieval. The algorithms are CUDA-accelerated and form building blocks for more easily writing high performance applications.
Cuda · C++★ 1,042Sep 17, 2026
PyPI96Exceptionalhealth index
Python · Jupyter Notebook★ 3,419Sep 11, 2026
PyPI · Go · npm96Exceptionalhealth index

onyx-dot-app/onyxOpen Source AI Platform - AI Chat with advanced features that works with every LLM
Python · TypeScript★ 32.1K↓ 5,015/moSep 16, 2026
PyPI94Exceptionalhealth index
Python★ 280↓ 6.2M/moAug 27, 2026
PyPI93Exceptionalhealth index

neuml/txtai💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
Python★ 13KSep 20, 2026
PyPI · npm · crates.io92Excellenthealth index

infino-ai/infinoEmbedded retrieval library built on Parquet. Fast, efficient, and scalable.
Rust★ 81↓ 8,183/moSep 18, 2026
crates.io89Excellenthealth index
Rust★ 129↓ 665.2K/moSep 18, 2026
crates.io · npm · Go +188Excellenthealth index

ashvardanian/NumKongSIMD-accelerated distances, dot products, matrix ops, geospatial & geometric kernels for 16 numeric types — from 6-bit floats to 64-bit complex — across x86, Arm, RISC-V, and WASM, with bindings for Python, Rust, C, C++, Swift, JS, and Go 📐
C · C++★ 1,883↓ 47.7K/moSep 12, 2026
npm · PyPI87Excellenthealth index
Python · TypeScript★ 6,567↓ 6,678/moAug 28, 2026
PyPI86Excellenthealth index

priya-sundaram-dev/whooshFast, pure-Python full-text indexing and search. Actively maintained continuation of Whoosh / whoosh-reloaded. Install: pip install whoosh3
Python★ 34↓ 4,689/moSep 11, 2026
PyPI84Excellenthealth index
Python★ 39.1K↓ 118K/moOct 12, 2026
crates.io · npm · Go +383Excellenthealth index

ashvardanian/StringZillaUp to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖
C · C++★ 3,555↓ 2,491/moSep 12, 2026
PyPI83Excellenthealth index

castorini/rank_llmRankLLM is a Python toolkit for reproducible information retrieval research using rerankers, with a focus on listwise reranking.
Python★ 660↓ 13.8K/moOct 22, 2026
PyPI · crates.io81Excellenthealth index

cognica-io/uqa-engineEmbeddable Rust query engine unifying relational, full-text, vector, graph, and probabilistic retrieval under one typed algebra.
Rust★ 6↓ 4,183/moOct 11, 2026
crates.io · PyPI78Goodhealth index
Rust★ 1,317↓ 9,430/moOct 20, 2026
crates.io · Go · npm +178Goodhealth index
Zig★ 429Sep 8, 2026
crates.io77Goodhealth index

Dicklesworthstone/frankensearchTwo-tier hybrid search for Rust: sub-millisecond initial results via potion-128M, quality-refined rankings in 150ms via MiniLM-L6-v2. Combines lexical (Tantivy BM25) and semantic (vector cosine) search with Reciprocal Rank Fusion. Progressive iterator API, f16 SIMD vector index, feature-gated compilation.
Rust★ 85↓ 2,769/moOct 7, 2026
Python · Jupyter Notebook★ 5↓ 876/moSep 11, 2026

mikeholownych/citableProduction-grade SEO, AEO, and GEO agent skill with auditable detection, claim governance, evidence validation, and multi-agent installation.
JavaScript★ 1↓ 830/moSep 17, 2026

xhluca/bm25sFast BM25 search in Python, powered by Numpy and Numba
Python★ 1,783Sep 12, 2026
Python · Jupyter Notebook★ 12.2KSep 17, 2026
crates.io67Goodhealth index

vlwkaos/irRust-based FAST local markdown search engine (with possible support for CJK)
Rust · Python · Shell★ 80↓ 69/moSep 10, 2026
PyPI · crates.io · Maven62Moderatehealth index
Java · Python★ 1↓ 8,207/moSep 15, 2026
PyPI62Moderatehealth index
Python · Cython★ 284↓ 2.1M/moAug 27, 2026
C++★ 457Sep 11, 2026

0kaba0hub/go-xapianA thin cgo binding over the Xapian C++ search library — writable/read databases, documents, queries and search, with Xapian exceptions surfaced as Go errors.
Go · C++★ 1Sep 13, 2026

patelvivekdev/fast-BM25BM25 (Okapi BM25) implementation in TypeScript with field boosting and parallel processing support.
TypeScript★ 1↓ 52.5K/moSep 27, 2026