* [Dgraph v25.4.1](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.

* [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.

* [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.

* [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.