Codex
Codex is your personal in-browser knowledge base. Save notes, links, code snippets, images, web clips, and checklists with tags, colors, pins, and full-text search. Everything stays on your device.
Codex is not a chatbot. It captures and organises content - it is not a generative AI assistant.
Entry Types
| Note | Plain text or rich notes |
| Link | URL with auto-fetched title and preview metadata (via Jsoup) |
| Web Clip | Saved HTML fragment from a page (selected text or full article) |
| Code | Code snippet with language tag |
| Checklist | Multi-line task list with check states |
| Image | Image attached from gallery, share intent, or web |
Adding to Codex
From a web page
- Selected text: Long-press to select text, then tap Add to Codex in the action mode menu.
- Link the current page: Browser menu → Codex → Add link.
- Web clip: Save a fragment as an HTML clip with source URL and title.
From other apps
Use Android's Share sheet - text/plain and image/* both share into Stealth Browse and create a Codex entry directly.
From Codex itself
Open Codex from the browser menu (or pin it as a primary action). The library view supports add, search, filter, tag, color, pin, and delete.
Organisation
| Tags | Free-form labels - one entry can have multiple tags |
| Pin | Pinned entries appear at the top of the library |
| Color | Color-code entries for visual grouping |
| Search | Full-text across title, body, source URL, and tags |
| Filter | By type, color, tag, or date range |
Storage & Privacy
- Entries are stored locally as JSON in app-private storage.
- The app sets
android:allowBackup="false", so Codex data is not included in Android system backups. - JS bridge
StealthCodexexposesaddTextToCodexandaddWebClipToCodexto plugins.