Local semantic search for your documents. Index Markdown, PDF, and Office files with hybrid BM25 + vector search.

Fast, accurate text search with BM25 scoring and stemming.

KINDX - On-device hybrid search engine for markdown documents with BM25, vector embeddings, and LLM reranking

Retrieval: chunker, BM25 + dense hybrid with RRF, schema-bound citation validator.

Postgres and pgvector adapter for @jeffs-brain/memory: tsvector BM25, halfvec cosine, and RRF hybrid retrieval.

Local-first memory and hybrid retrieval library for LLM agents with pluggable stores, BM25 plus vector search, and a four-stage memory pipeline.

FIVO CELL — Unlimited memory AI coding assistant with BM25+TF-IDF retrieval, PII redaction, cost tracking, 3 modes, vault & vibe

Persistent memory for AI agents. Multi-strategy retrieval (semantic + BM25 + RRF), 3-zone cosine triage, type-aware lifecycle, entity canonicalization. Postgres + pgvector.

Stemming and indexing based off of the porter stemming algorithm, and BM25 indexing algorithm

Configurable BM25 Text Search Engine with simple semantic search support

BM25 search for coding agent sessions

Self-learning vector memory for AI agents — single-file .rvf cognitive container with HNSW search, episodic Reflexion memory, causal graph + Cypher, 9 RL algorithms, Thompson Sampling bandit, 41 MCP tools, hybrid (BM25 + dense) retrieval, GNN attention. 1

Hybrid search for markdown with BM25, vector search, and local or remote LLM reranking

OpenCodeHub — BM25 + RRF hybrid search

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

持久化记忆系统，基于 SQLite FTS5 和 BM25 搜索（OpenCode/Bun 运行时）