Privacy & Security

Privacy isn't an afterthought—it's built into every layer of Lyaima. Your data stays local by default, and you're always in control.

Local-First Storage

Everything is stored locally in your browser's IndexedDB first. Your journals, events, milestones, and all data live on your device. Cloud sync only happens when you explicitly request it—never automatically.

All journal entries stored locally in browser IndexedDB
Events and milestones stored locally
Cloud sync is opt-in, not automatic
You control when and what gets synced
Data never leaves your device without your explicit action

Local AI Processing

Semantic search and pattern discovery run entirely on your device using local AI models. These features work completely offline with zero external requests. Your data never leaves your browser for these features.

Semantic search runs 100% locally on your device
Pattern discovery processes on your device
No internet connection required
No data sent to external servers
AI models downloaded once and cached locally

PII Filtering Before AI

When you choose to use cloud AI features (like AI chat), we first filter out all personally identifiable information (PII) locally on your device before anything is sent. Names become [PERSON_1], places become [LOCATION_1], phone numbers become [PHONE], and only the filtered summary is sent to external AI services.

PII filtering happens locally on your device first
Names automatically replaced with [PERSON_1], [PERSON_2], etc.
Locations replaced with [LOCATION_1], [LOCATION_2], etc.
Phone numbers, emails, addresses all filtered
Only privacy-filtered summaries sent to cloud AI
You can see exactly what's being sent before it goes

Transparent Controls

You have complete control over your data and privacy. See exactly what data is being used for AI queries. Enable or disable cloud AI features at any time. Your privacy settings give you full control over what leaves your device.

Privacy dashboard shows what data is synced
See PII filtering status in real-time
Review cloud AI usage history
Enable/disable cloud AI features anytime
Export all your data at any time
Clear local cache when needed

How Your Data Flows

You Write

Journal entries are saved immediately to your browser's local storage (IndexedDB).

Local Only

Local AI Processing

Semantic search and pattern discovery run entirely on your device. No data leaves your browser.

Local Only

Optional Cloud Sync

Only when you explicitly request it, your data syncs to cloud servers for backup and cross-device access.

Local + Cloud

Cloud AI (If Enabled)

If you use cloud AI features, PII is filtered locally first, then only filtered summaries are sent to external AI services.

Local Filtering → Cloud AI

We Do

Store your data locally in your browser
Process AI features locally on your device
Filter PII locally before sending to cloud AI
Give you complete control over cloud sync
Let you export all your data anytime
Work completely offline

We Don't

Automatically sync your data to cloud
Send your full journal entries to AI services
Access your data without your permission
Sell or share your data with third parties
Require internet for core features
Track you across the web

PII Filtering Example

Original Entry:

"Met John at Starbucks on Main Street for coffee. We discussed the project deadline. Called Sarah at 555-1234 to confirm the meeting."

↓

After Local PII Filtering (sent to cloud AI):

"Met [PERSON_1] at [LOCATION_1] on [LOCATION_2] for coffee. We discussed the project deadline. Called [PERSON_2] at [PHONE] to confirm the meeting."

Personal information is removed locally on your device before any data is sent to external AI services.

Your Privacy, Your Control

Lyaima is designed with privacy at its core. Your data stays local by default. When you choose to use cloud features, PII filtering happens on your device first. You're always in control of what leaves your device and when.