CRM + Knowledge Graph

Your CRM finally
thinks like you do.

Contacts, deals, and notes — all linked in one living graph. No more toggling between a CRM and a second brain. Self-hosted. Markdown-native. Yours.

Open the App →
60k+ GitHub stars on hybrid PKM tools
0 Products do CRM + graph
1 That's Nexus
Contacts
Deals
Companies
Notes
Research
Team

Two worlds. One graph.

Traditional CRMs store data. Nexus connects it. Every record becomes a node in your knowledge graph — and every note in your second brain becomes context for your deals.

Full CRM, not a module

Leads, contacts, companies, pipeline, activities, tasks — a complete CRM built for self-hosted teams. Kanban boards, list views, automated workflows. No per-user pricing.

  • Kanban pipeline with drag-and-drop
  • Automated activity logging
  • Custom fields and layouts
  • Email integration and sequencing

Knowledge graph, not notes

Bidirectional links between notes, contacts, and deals. Backlinks show you every connection to anything. Graph view makes relationships visible — not buried.

  • Markdown notes as first-class records
  • [[Wiki-style]] bidirectional linking
  • Backlinks panel on every record
  • Visual knowledge graph navigation

Memos-style capture

Instant capture — no folders, no forms, no friction. Write a memo, link it to a contact, and it's instantly connected to everything in your CRM. Your workflow stays alive.

  • One-click capture from anywhere
  • Instant linking to CRM records
  • Tagging and filtering
  • Timeline view of all activity

CRMs are databases.
Nexus is a brain.

Every existing CRM treats notes as attachments. Nexus treats notes as the primary unit — every contact, deal, and company is a node in your knowledge graph, not a row in a spreadsheet.

Old CRM
Notes are attachments
Contacts are isolated records
Activity history is an audit log
No knowledge connection
Nexus
Notes are first-class citizens
Contacts are graph nodes
Activity feeds your thinking
Everything links to everything

Memos-style quick notes,
in your CRM context.

No folder structure. No templates. Just write. A memo links to a contact — that contact instantly shows the memo in its backlinks. Your thoughts stay connected to your work, automatically.

Today, 9:41 AM
Met with Sarah from Acme Corp. They're evaluating 3 vendors. Budget approved in Q3 — decision by end of month. Mentioned they had issues with their previous vendor's onboarding. [[Acme Corp]] [[Q3 Decision]]
Linked to Acme Corp
Backlinked in Sarah Chen contact record
Tagged: Q3 Decision, Acme Corp

Your CRM and your second brain have been separate long enough.

Nexus is the open-source CRM that finally brings them together. Self-hosted, privacy-first, built for teams who think in connections, not just data.

Open the App →
Self-hosted Markdown-native Open source No per-user fees Graph-first Instant capture