Not another notes app — a living second brain
Your second brain.
It remembers what you forgot.
Memento is your Second Brain: it connects ideas across months, surfaces hidden links, and turns notebooks into a system you can search, brief, and act on every morning.
Free to start · Google sign-in · No credit card
"Linked to your March design brief — same constraint, new angle."
The real problem
You don't need more notes. You need a second brain.
Folders fill up. Search fails. Ideas die in silence. A Second Brain finds the threads between what you capture — so yesterday's thinking powers tomorrow's decisions.
That's Memento: a Second Brain that connects itself while you write.
Memory Echo
The moment your Second Brain talks back.
While you write, Memento detects semantic links across notebooks — not keyword matches, real conceptual bridges you can open in a split peek.
Just detected
"Your note on pricing mirrors the competitor teardown from last autumn."
Bridge
Shared theme: positioning under constraint
Action
Open both notes side by side — keep writing
Second Brain dashboard
A morning that tells you what matters.
Your Second Brain briefing: next paths, checklist, discoveries, revisions — widgets you arrange yourself.
Next paths
3 actions from your last note
Daily review
Inbox · AI · Flashcards
Memory Echo
2 new connections overnight
Agents
1 suggestion ready to run
Insights
See the architecture of your Second Brain.
Semantic clusters and bridge notes — a living map of how your knowledge actually connects.
Cluster network
Revision
Remember on purpose.
Generate flashcards from any note. SM-2 spaced repetition built in — knowledge that sticks in your Second Brain.
What connects Memory Echo to your notes?
Three steps. Then your Second Brain compounds.
Capture freely
Write in a next-gen editor — blocks, structured views, smart paste. Clip the web when you need it.
Let it connect
Memory Echo and semantic search weave links you didn't plan. Your past work becomes fuel.
Act every morning
Dashboard paths, agents, and flashcards turn a pile of notes into Second Brain momentum.
AI agents
Delegate the heavy lifting.
Research, scrape, slides, diagrams, monitoring — agents that write into your Second Brain, not another chat tab you'll forget.
Scraper
URLs & RSS → synthesized notes with smart images.
Researcher
Deep queries, sources, structured research notes.
Slide Gen
Notes → decks or interactive HTML slides.
Monitor
Watch notebooks for trends and new insights.
Diagram Gen
Ideas → Excalidraw mind maps & flows.
Custom
Your roles, sources, and schedules.
Your keys. Your models. Your Second Brain.
Use Memento credits or plug OpenAI, Anthropic, Google and more. Switch providers in a click — the product stays yours.
{
"provider": "anthropic",
"model": "claude-sonnet",
"apiKey": "sk-ant-…",
"yours": true
}
Start free. Grow your Second Brain when it clicks.
Clear tiers — from first notes to organizational memory.
Basic
Start your Second Brain.
- Up to 100 notes
- 3 notebooks
- 100 AI credits / month
- Search, chat, tags (via credits)
- 7-day history
Pro
For serious thinkers.
- Unlimited notes
- 1,000 AI credits / month
- BYOK (your own keys)
- Agents (use credits)
- 30-day history
- Email support
Business
Team Second Brain.
- 10 collaborators
- 4,000 AI credits / month
- BYOK · 13 providers
- Agents & brainstorm (credits)
- API / MCP
- Priority support
Enterprise
Org-wide Second Brain.
- Unlimited AI credits or dedicated pool
- Everything in Business
- SSO / SAML
- Audit logs & SLA
- Dedicated support
- Live onboarding
Stop losing your best ideas.
Open Memento. Write one note. Watch your Second Brain find the ones you forgot.
Create my free Second BrainFree to start · Google sign-in · No credit card