
Fossify Notes
CherryTree
Zim Wiki
Notesnook
Cryptee
Trilium Notes
Turtl
EasyNotes
ChainMemory
Agentmemory
Memori
OpenMemory MCP
Tempreon
TheSecondBrain.dev
cognee
Claiv Memory
ChainMemory gives your AI agents persistent memory that belongs to YOU โ not to a single vendor.
Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity โ no trust required.
Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.
Fossify Notes
ChainMemoryCherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
Zim Wiki - Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.
Memori - Persistent memory from agent trace, not just conversation
Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.
OpenMemory MCP - Your private, local memory layer for all AI tools