Fast planning
Drag, resize, and edit events inline without modal-heavy flow.
The calendar that keeps
your life private
Secure by design. Powerful by default.
Week View
Design review
10:00 - 10:45
Roadmap sync
13:30 - 14:15
Focus block
15:00 - 17:00
Release review
17:30 - 18:00
Encrypted Stream
2nd49snxieNwi29Dnejs
4fK29xneJ2qLs09PzVaa
A0zX19pwQm7RtL2he81n
n0Mqe28XvLp31sTTad90
dN7qa21PoxM44jvR8tyk
Qv4mL2zPaa11Nwe8sX0t
T7ePq82sLmN4xR3vA11f
zP8wN2kLmQ1vD45sA0xe
Fast planning.
Less noise.
Every interaction is designed to keep flow intact: fast edits, secure defaults, and formats that remain portable across tools.
Privacy by default
No analytics scripts by default with optional end-to-end encryption.
Open and portable
Import/export with .ics, .json, and .csv while keeping full control.
Multi-view workflow
Switch between day, week, month, and year perspectives without losing context.
Keyboard-first speed
Navigate and edit quickly with shortcuts designed for high-frequency planning.
Cross-device consistency
A consistent experience across desktop and mobile layouts for daily reliability.
Trusted data.
Clear architecture.
Practical metrics and straightforward infrastructure choices, without black-box behavior.
35
Locale packs
5
Theme options
3
Import formats
01
Open-source and privacy-first
02
Optional cloud sync with PostgreSQL
03
Authentication with Clerk
04
Import/export support for .ics, .json, .csv
Privacy at a glance.
A quick snapshot from the repository comparison table, focused on encryption, tracking defaults, and data portability.
Feature
One Calendar
Google
Proton
End-to-end encryption (E2EE)
✅
❌
✅
No analytics by default
✅
❌
✅
ICS import / export
✅
✅
✅
Keyboard shortcuts
✅
✅
✅
Custom themes
✅
⚠️
⚠️
Why One Calendar
35
Locales
5
Themes
3
Import formats
E2EE
Optional
Clarity over complexity
A calm planning flow instead of overloaded automation and noisy dashboards.
Privacy-first defaults
No analytics by default, with optional end-to-end encryption for sensitive data.
Portable workflows
Import/export support keeps your data usable across ecosystems without lock-in.
Fast team coordination
Weekly scheduling, quick edits, and structure that scales from solo to team use.
More complete real-world scenarios
and product direction
One Calendar is more than event storage. It is a practical scheduling system for sustained focus, coordinated execution, and consistent long-term planning.
Real-world scenarios
Deep work planning for individuals
Protect focus time with intentional blocks, reminders, and weekly structure so important work is not displaced by reactive scheduling.
Small team release coordination
Align launch prep, design checkpoints, QA windows, and retrospectives on a single timeline to reduce execution overhead.
Study and exam scheduling
Convert long learning goals into daily actions and track classes, revision windows, and deadlines with predictable cadence.
Cross-time-zone collaboration
Find realistic overlap times quickly and keep recurring meetings stable for globally distributed collaborators.
Content production pipeline
Map ideation, drafting, review, publication, and follow-up analysis as one connected production flow.
Family and life operations
Coordinate appointments, school events, travel windows, and household plans in one dependable system.
Product principles
Simplicity by default
Keep first-view information clear and calm so users focus on decisions, not interface noise.
Portability by default
Preserve user freedom with reliable import/export and avoid system-level lock-in.
Auditability by default
Use an open implementation that can be inspected, discussed, and improved by the community.
Privacy by default
Treat privacy as baseline product behavior, not as a premium feature toggle.
Speed by default
Enable high-frequency workflows with keyboard-first interaction and low-friction editing.
Scalability by default
Support smooth growth from personal planning routines to structured team coordination.
FAQ
Ready to simplify planning
Your time. Your data. Yours.
Keep your schedule clear with privacy-first defaults, portable formats, and dependable sync.