Privacy & Storage

Where your data is stored

HAEVN stores everything locally in your browser. There are no external servers, no accounts, and no cloud storage.

What	Where
Conversation data and metadata	IndexedDB (browser storage)
Search index	IndexedDB
Media files (images, documents, audio, video)	Origin Private File System (OPFS)
Extension settings (Open WebUI URL, etc.)	`chrome.storage.local`

None of this data ever leaves your machine. HAEVN does not:

Send telemetry or analytics
Upload conversations to any server
Require an account or login
Connect to any service other than the AI platforms you explicitly sync from

Storage limits

Chrome’s storage quotas apply:

Storage type	Typical quota
IndexedDB	~50MB per extension (configurable)
OPFS	~600MB+ (device dependent, much larger)

Media files are stored in OPFS specifically because it supports much larger files than IndexedDB. Text content, metadata, thumbnails, and the search index all live in IndexedDB.

What HAEVN accesses

When syncing, HAEVN uses your existing browser session (cookies) to access the AI platform you’re on. It makes the same API calls that the platform’s own website would make. No credentials are stored by HAEVN — it relies entirely on your browser’s existing authentication.

Backing up your data

Because everything is local, if you uninstall the extension or clear your browser data, your archive is gone. To prevent data loss:

Use Export All to download regular JSON backups
These backups can be re-imported into HAEVN on any machine

Clearing your data

To delete all HAEVN data:

Uninstall the HAEVN extension from Chrome
Chrome will prompt you whether to also delete the extension’s stored data — choose “Yes”

Or, to clear data while keeping the extension installed, use the archive’s bulk delete feature to remove individual conversations, or run haevnDebug.db.delete() and reinstall the extension.