Start each day with a fresh inbox. Capture thoughts, emails, and reading highlights. AI helps extract topics and build connections, creating your personal knowledge graph over time.
River transforms your daily notes into a living knowledge graph. AI helps extract topics, create nodes, and build connections while preserving the full context of your thoughts.
Start each day fresh. All your thoughts, emails, and highlights flow into a daily note that serves as your inbox.
Send quick notes to your personal River email address. Everything lands in today's daily note automatically.
Automatically import highlights from books, articles, and tweets directly into your daily notes.
AI extracts topics from daily notes, creates dedicated nodes, and builds connections across your knowledge graph.
Every connection traces back to the original note that created it, preserving full context and timeline.
Export your entire graph as Markdown files. Your knowledge belongs to you, always.
Get started in minutes and own your data forever
Email quick notes to your River inbox, connect Readwise for reading highlights, or use our MCP server with your AI agents. Everything flows into one place.
River uses AI to extract topics from your daily notes, create dedicated nodes, and build connections between related ideas. Every link traces back to its source for full context.
Use your own API keys for AI features. Export everything as Markdown anytime. River is built on open standards so your knowledge is never locked in.
Start free, upgrade when you need more
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For serious knowledge builders
All plans include BYO API keys • No hidden fees • Cancel anytime
Join thousands who are organizing their knowledge with River. Free to start, powerful enough to scale.