Writebox
WriteNext
Stashany
Calmly Writer
Cold Turkey Writer
Crossnote
JDarkRoom
SSuite NoteBook Editor
ChainMemory
Mem0
Agentmemory
Memori
Tempreon
cognee
TheSecondBrain.dev
Suprflo
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.
Writebox
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WriteNext - The writing application that boosts your writing. Increase focus and writing performance and reduce distractions by separating your creative writing from other activities. Let writing be the only activity you perform in the writing application.
Mem0 - Your private, local memory layer for all AI tools
Stashany - Online notepad for developers
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
Calmly Writer - Distraction-free text editor for Mac, Windows, Linux and ChromeOS.
Memori - Persistent memory from agent trace, not just conversation