The Privacy-First OS for
Your
Inner Circle
A local-first, end-to-end encrypted workspace for your group. Chat, plan, and organize with zero data harvesting. Your data lives on your devices, not our servers.
How Cohrtz Is Built
Cohrtz runs a hybrid model: a peer-to-peer data plane for encrypted sync and a lightweight control plane for optional coordination services.
Data Plane (Serverless P2P)
Each client is a database node. Data sync travels over WebRTC data channels with CRDT conflict resolution, delta sync, and E2EE.
Hybrid Sovereignty
Your group owns its plaintext and keys. The control plane is intentionally minimal so core collaboration remains local-first and private by default.
The Bento Grid
A modular dashboard that adapts to your group's needs. Turn widgets on or off to create your perfect workspace.
Polls
LiveCreate and vote on group decisions in real time with synchronized results.
Permissions
BetaGranular role controls for widgets and sensitive group actions.
Calendar (The Prophecies)
LiveShared events synchronized with vector clocks for reliable offline edits.
Chat (The Hearth)
LiveAppend-only, end-to-end encrypted chat synchronized through the mesh.
The Vault
LiveAES-GCM protected storage for credentials and sensitive documents.
Tasks
LiveCRDT-backed to-do lists that remain consistent even after offline edits.
Notes
Coming SoonCollaborative long-form notes and lightweight docs for your group.
Location (The Beacon)
Coming SoonTemporary, opt-in location sharing for safe meetup coordination.
Storage Management
BetaMonitor per-group storage usage directly from group settings.
Security At A Glance
Every packet is signed, sensitive payloads are encrypted, and group keys rotate for forward secrecy. Read the complete technical policy for full protocol details.
Built for Every Circle
Whether you're organizing a busy household or coordinating a complex project, Cohrtz adapts to your group's unique rhythm.
Modern Families
Keep the household running smoothly. Share a family calendar, maintain a grocery list that everyone can add to, and securely store insurance cards and medical records in the Vault.
Travel Groups
Plan the perfect trip without the chaos. Coordinate flight details, share itinerary ideas in Notes, and settle expenses. All offline-capable for when you're roaming.
Roommates
Stop fighting about chores. Assign recurring tasks, track shared bills, and keep a digital house manual for things like the wifi password and landlord contact.
Project Teams
Focus on current work. A distraction-free environment for small teams. Discuss sensitive IP securely, manage sprints with Tasks, and keep specs in Notes.
Why Cohrtz?
We built Cohrtz to be the most helpful tool in your pocket, not to monopolize your attention.
Your Private Space
Your data stays on your devices. We don't mine your life for ads. You own your conversations, plans, and memories.
Simple & Clean
No clutter, no noise. Just the tools you need to coordinate with your group, designed to be intuitive and fast.
Works Everywhere
Seamlessly syncs across your phone, tablet, and laptop. Your group is always in your pocket, wherever you go.
Ready to regain your digital sovereignty?
Join the beta and start organizing with your Cohrtz group today.
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Be the first to know when we launch.