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Mem

Free tier

The self-organizing workspace powered by AI — your second brain

Free tier available·All audiences·Powered by OpenAI

Key strengths

AI-powered automatic organization of notes without manual folders or tagsNatural language search across your entire knowledge baseSmart writing assistant that leverages your existing notes as contextBi-directional linking and related note surfacingSeamless capture across web, mobile, and desktop
Free tier + paid plans · from $14.99 USD/mo
San Francisco, USA
Founded 2020
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Technical Details & Integrations

Architecture: Mem operates as a SaaS platform with a cloud-hosted backend. All notes are stored and indexed in the cloud, with end-to-end sync across devices. The AI layer uses LLMs augmented with retrieval-augmented generation (RAG) over your personal note corpus.

Key Technical Features:

  • Semantic Search: Vector embeddings are generated for all notes, enabling natural-language and concept-based retrieval beyond keyword matching.
  • Mem AI (Chat): An LLM-powered assistant grounded in your workspace data. Reduces hallucination by citing specific mems as sources.
  • Auto-tagging: ML classifier automatically applies structured tags to notes based on content, date, and entity recognition.
  • Bi-directional links: [[wiki-style]] linking between notes with automatic backlink tracking.

Integrations:

  • Slack: Capture messages or threads directly into Mem via the Mem Slack bot.
  • Email: Forward emails to a personal Mem inbox address to save them as notes.
  • Chrome Extension: One-click clipping of web pages with annotation support.
  • iOS/Android Share Sheet: Share content from any mobile app directly into Mem.

API: As of the latest available information, Mem does not offer a public REST API for third-party developers.