obsidian-alternative

AI-native knowledge base & Evernote/Obsidian alternative with instant sync & native MCP. Free on Cloudflare or self-hosted via Docker.

A markdown editor — and the bridge to your LLM. Local-first, MIT, ~15 MB. Bundled MCP server lets Claude Code / Codex / Cursor drive your vault directly. 14 AI providers BYOK.

Lumina Note - A modern Markdown note-taking app with live preview, bidirectional links, and AI assistant

The local-first LLM Wiki: open-source knowledge graph builder, RAG knowledge base, and agent memory store. Built on Andrej Karpathy's pattern. An Obsidian alternative for personal knowledge management, AI second brain, and durable Claude Code / Codex / OpenClaw memory.

Kition brings Markdown, DataTable, WhiteBoard, a tool-using AI agent, browser research, and visual workflows into one desktop workspace.

Instant thought capture for macOS. One shortcut, post-it appears, type, close.

Open-source local-first Markdown workspace with wiki, AI editing, and encrypted sync.

A local-first workspace for documents, tasks and meetings on macOS — nested spaces, typed properties, relations and saved views, with transcription, Smart Minutes and an agent running entirely on-device via MLX on Apple Silicon

A fast, open-source markdown editor. Graph view, plugin API, themes, Git/WebDAV sync, AI MCP — built on Tauri 2.

AI-Powered Zettelkasten Desktop Agent — local-first second brain with hybrid search, AI agents, knowledge graph, and intelligent canvas. Fully offline out-of-the-box.

Open source local-first knowledge base maintained by an LLM agent. Implements Andrej Karpathy's LLM Wiki pattern.

Local-first markdown notes with a first-class MCP server. 16 tools + 2 resources for Claude Code, Claude Desktop, Cursor and any MCP agent. Per-folder permissions, semantic RAG via LanceDB, single Bun binary. AGPL.

The high-velocity, shortcut-first brain dump for Windows. ThoughtsPlus eliminates the friction of bloated productivity tools, allowing power users to capture ideas, sketch, and track progress without ever leaving their workflow. No cloud, no telemetry, just pure focus.

Open-source, web-based knowledge base — Obsidian-style linked markdown notes, backlinks and a GPU-rendered knowledge graph. FastAPI + Next.js, multi-tenant and self-hostable, with real-time collaboration, canvas, publishing and a Web Clipper.

Sublime Text implementation of Urtext, a Python library for writing and information management

Local-first personal workspace: write notes, track tasks, chat with an AI that knows your files - all plain Markdown, no cloud.

Personal knowledge graph MCP server on Cloudflare D1 + Vectorize. Deploy your own sovereign second brain in one click — Claude captures atomic concepts, finds cross-domain analogies, and links them with substantive justifications. Latticework thinking as a service, running entirely in your Cloudflare account.

A native Logseq for macOS. Apple-native outliner built with SwiftUI. Local-first. File-based. No Electron. No cloud. Your markdown, your machine.

📝 Free, open-source Markdown notes that live in your own GitHub repo. Wikilinks, backlinks, offline search, Mermaid diagram studio, PDF reading and real version history, with no lock-in.

Markdown Indexing and Pcre Regular Expression Compatible Full Text Searching for Advanced Note Takers.