* [Dgraph v25.4.0](https://github.com/dgraph-io/dgraph) – Horizontally scalable distributed GraphQL database offering ACID transactions, consistent replication, and low-latency queries.

* [Trilium Notes v0.105.0](https://github.com/TriliumNext/Trilium) – Cross-platform hierarchical note taking application focused on building large personal knowledge bases.

* [Memorix v1.8.0](https://github.com/AVIDS2/memorix) – Persistent, shared memory layer for AI coding agents enabling cross-agent context, compression, and reranked retrieval.

* [PrismOS-AI v0.6.0](https://github.com/mkbhardwas12/prismos-ai) – PrismOS-AI is a desktop AI that answers questions from local Ollama models, stores knowledge on disk, and works offline with a multi-agent pipeline.

* [AI Reader V2 v0.73.0](https://github.com/mouseart2025/AI-Reader-V2) – Novel-analysis visualization tool producing character relationship graphs, maps, timelines and encyclopedias with local and cloud LLM support.

* [Stardog.js v10.1.0](https://github.com/stardog-union/stardog.js) – Universal JavaScript HTTP client for executing SPARQL queries, administrative tasks, and reasoning against an RDF triplestore.

* [Memory Vault v1.4.0](https://github.com/MihaiBuilds/memory-vault) – Self-hosted memory database for AI apps using Postgres and pgvector with hybrid search, MCP tools, and an embedded knowledge graph.

* [Karpathy LLM Wiki Plugin for Obsidian 1.26.4](https://github.com/green-dalii/obsidian-llm-wiki) – AI-powered Obsidian plugin that ingests your notes and generates a connected knowledge wiki with structured entity and concept pages and conversational querying.

* [BioCypher biocypher-v0.17.0](https://github.com/biocypher/biocypher) – Unifying framework for biomedical research knowledge graphs.

* [TidGi v0.14.2](https://github.com/tiddly-gittly/TidGi-Desktop) – Cross-platform desktop app for note taking, GTD, and knowledge management with git backup and blogging support.

* [KiwiFS v0.19.62](https://github.com/kiwifs/kiwifs) – Knowledge server exposing Markdown files with Git versioning, full-text and vector search, and an Obsidian-like web UI.

* [Semantic Notes Vault MCP 0.12.6](https://github.com/aaronsb/obsidian-mcp-plugin) – MCP server for Obsidian enabling AI assistants to semantically search, navigate, and edit your vault via HTTP.

* [Dim0 The Thinking Canvas v0.3.89](https://github.com/vcmf/dim0) – Real-time collaborative AI canvas where a board-aware agent and mini-apps read, operate on, and write back results as editable nodes.

* [SparrowDB v0.1.27](https://github.com/ryaker/SparrowDB) – Embedded, Cypher-native graph database that runs in-process with durable on-disk storage and native bindings for Rust, Python, Node.js, and Ruby.