Mem
TrendingAI-powered personal knowledge base that organizes itself
👥 500K+ users💰 $29M Series A
✓ Last verified: March 2026
Mem is a personal knowledge management tool that uses AI to automatically categorize, link, and surface your notes without manual tagging or folder hierarchies. Its AI assistant can answer questions, summarize content, and draft responses based on your accumulated knowledge. Designed for writers, researchers, and knowledge workers who want a self-organizing second brain.
Our Ratings
8
Ease of Use
8
Output Quality
7
Value
6
Support
6
Versatility
Key Features
- ✓AI auto-categorization and linking of notes without manual tagging
- ✓Mem Chat AI assistant for Q&A and drafting based on your notes
- ✓Temporal Context that surfaces time-relevant information automatically
- ✓Natural-language semantic search across your entire knowledge base
- ✓Smart Write and Smart Edit for AI-assisted content generation
Best For
- 👍 Knowledge workers who want a self-organizing personal wiki
- 👍 Writers and researchers building a long-term knowledge base
- 👍 Professionals who capture notes across email, web, and SMS
Limitations
- ⚠️ Free tier limited to 25 notes and 25 chat messages per month
- ⚠️ No Android app available as of early 2026
- ⚠️ Folderless organization can be disorienting for traditional note-takers
Integrations
NotionEvernoteGoogle CalendarZapier
Quick Facts
DifficultyBeginner
Team sizesolo
API accessYes
Mobile appYes
Data privacymedium
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