Memento
Capture
Highlight, ask, save. Chat with AI on-screen to go deeper.
Learn what you read on the web.
A browser companion that captures, asks, and turns it into flashcards you'll remember.
Agentic spaced repetition learning harness. Effortlessly build your personal knowledge base.
Branch
Pull any sentence into its own thread without losing the trunk. Press b to branch.
Recall
Your knowledge base gets new flashcards. Daily reviews land in Telegram.
How it works
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1. Capture from any page.
Open the sidebar from your browser toolbar. Highlight, right-click, click Chat.
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2. Ask, branch, follow up.
Each branch keeps its own context. Trunk stays clean for the main question.
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3. Save to your knowledge base.
Edit, approve, save. Cards land in your Memento collection and your Telegram review queue.
Plans
Memento Pro
$14.99 / mo- Chat with selections
- Card generation + cloud knowledge base
- Memento-hosted AI
Memento Lite
$4.99 / mo- Bring your OpenRouter key
- Card generation + cloud knowledge base
Memento DIY
Free- Bring your OpenRouter key
- Chat only — no cards or knowledge base
Questions
Do I need to install the extension to use Memento?
Yes — Memento lives in your browser. The website is for managing your plan and reviewing your knowledge base.
What does Memento Pro include?
Chat with selections, Memento-hosted AI, card generation, and the cloud knowledge base.
Can I use my own OpenRouter key?
Yes. The Lite and DIY tiers route inference through your OpenRouter account.
Where are my flashcards stored?
In your Memento knowledge base. You can review them on the web, in the extension, or via Telegram.
Can I export my cards?
Yes, as CSV from your Profile → Preferences → Export.
How do I cancel?
From Profile → Subscription. Cancellation keeps your access until the end of the current period.
Get Memento Pro.
Memento-hosted AI, card generation, and cloud knowledge base.
Get Pro