ETHOS
Your mind, structured. A personal journal
built for depth, not distraction.
Philosophy
Most journal apps optimize for engagement. Ethos optimizes for clarity.
Your data lives on your device first. Encryption happens in your browser, not our servers. No analytics tracking your thoughts. No AI training on your entries.
Ethos is a system, not a feed. Every interface element exists to help you think more clearly, track with intention, and build the practice of honest self-reflection.
System Architecture
Six interconnected modules working together as one cohesive system.
Bullet System
Tasks, notes, events, and memories. Your own grammar for thought capture with rapid cycling through states.
Trackers
Mood, sleep, stress, and physical metrics with aligned habit matrices.
Encrypted Vault
Client-side AES-256-GCM with WebAuthn biometric unlock. Zero-knowledge.
AI Insights
Privacy-first pattern analysis. Send aggregates only, never raw text. BYOK with your own API key stored encrypted in the vault.
Daily Notes
Freeform text capture with file attachments of any type. Rich writing space for long-form reflection.
Offline First
Full PWA with service worker caching. Works without internet, syncs when you reconnect.
Goals & Reflection
Yearly and monthly goal tracking with accomplishments, gratitudes, and check-ins across mind, body, and spirit.
25+
Data Models
AES-256
Encryption
0
Trackers on You
\u221E
Offline Days
How It Works
Capture
Open the day view and start writing. Bullets auto-classify as tasks, notes, events, or memories based on your prefix. No setup required.
Track
Log metrics and habits daily. The aligned tracker view reveals correlations between your mood, sleep, and the habits you maintain.
Reflect
Review your week and month. Set goals, log gratitudes, and let optional AI surface patterns you might miss on your own.
From Users
Built by people who tried every journal app and wanted something different.
“I've tried Notion, Day One, Obsidian for journaling. Ethos is the first app that feels like a system, not a blank page. The bullet grammar clicks instantly.”
“The vault with passkey unlock is exactly what I needed. No more switching to a separate password manager. Everything lives in one encrypted, private space.”
“Being truly offline-first means I journal on flights, in the mountains, anywhere. When I'm back online it just syncs. No anxiety about connectivity.”
Plans
Start free. Upgrade when your practice grows.
Free
100 MB storage
Everything you need to start a daily practice.
- ─Bullet journal system
- ─Metrics & habit tracking
- ─Encrypted vault (20 items)
- ─Full offline access
- ─PWA installable
Pro
1 GB storage
For dedicated journalers who want AI and unlimited storage.
- ─Everything in Free
- ─AI-powered insights
- ─Unlimited vault items
- ─CSV & PDF export
- ─Priority sync
Premium
10 GB storage
The complete system with maximum capacity.
- ─Everything in Pro
- ─Priority support
- ─Unlimited habits & goals
- ─API access
- ─Custom integrations
Start writing with
intention.
Ethos is free to use, works offline, and encrypts your most sensitive data on your device. No account required to try.