Self-hosted alternatives to Mem

Second Brain

Self-hosted memory store that Claude, ChatGPT, Cursor and other MCP clients share, with recall by meaning

What a Mem user would miss

In-app chat, in-app dictation, offline editing and automatic formatting of notes.

What it adds

Memories, vectors and the models all run in your Cloudflare account on D1, Vectorize and Workers AI, with a private Personal layer and a Shared team layer.

• Partly Voice mode that turns spoken thoughts into notes. Voice and text capture through iOS Shortcuts; no in-app dictation.
• Yes Chrome extension that saves web pages. A Chrome extension in a separate repository and a bookmarklet.
• Partly Email forwarding into notes. Gmail and Outlook email and calendar integrations; no forwarding address described.
• Yes Deep Search by meaning. Recall by meaning with Vectorize and Workers AI embeddings, plus full-text search for exact names.
• Partly Heads Up resurfacing of notes at relevant moments. A brief of due items, open commitments and stale memories, and PWA push reminders; not triggered by meetings.
• Partly Agentic chat that creates, edits and organizes notes. No chat in the dashboard; MCP clients such as Claude and ChatGPT read and write memories.
• No Offline support. No offline mode described; the installed PWA is used for push reminders.
• Yes Version history with rollback. A history tool shows each memory's recorded changes with the text before each one, and undo restores from the trash.

Sources:github.com/rahilp/second-brain-cloudflare#readmewww.thesecondbrain.devmem.ai/get.mem.ai/blog/mem-2-dot-0

FlareMo

Memos-style quick notes and a shared team knowledge base, with semantic search and long-term memory for AI agents

What a Mem user would miss

In-app chat, a browser extension, email-in and automatic organization.

What it adds

It is AGPL-3.0, Memos-compatible with import from Memos and flomo, and has a team mode with roles and three visibility levels, projects with a kanban board, and a memory page where you review what agents recorded.

• Partly Voice mode that turns spoken thoughts into notes. /capture streams speech-to-text into a note; no automatic cleanup into formatted notes.
• No Chrome extension that saves web pages. No browser extension described in the README.
• No Email forwarding into notes. No email-in address described.
• Yes Deep Search by meaning. Workers AI embeddings with Vectorize for semantic Find, with SQLite full-text search as a fallback.
• Partly Heads Up resurfacing of notes at relevant moments. Daily Review, Random Walk and related-note recommendations; nothing triggered by meetings.
• Partly Agentic chat that creates, edits and organizes notes. No chat inside the app; Claude Code, Cursor and Codex read and write notes through the CLI, a skill and MCP endpoints.
• Yes Offline support. An installable PWA queues offline edits and replays them when online.
• Yes Version history with rollback. Revision history with diffs and one-click restore.

Sources:github.com/realchendahuang/flaremo#readmeflaremo.appmem.ai/