Last updated 26 September 2026.

Lexicora is a browser extension for Chrome, Edge and Firefox. It keeps
everything you capture on your own computer. It has no accounts, no servers
and no analytics, and it sends nothing about you or your browsing anywhere.

This is the same policy the extension shows in Settings → General → Privacy
policy.


Your library — topics, entries and their content — is stored by your browser
on this device, in its own database for the extension.

Your settings are stored separately: the theme, whether the capture prompt
appears and after how long, and the editor's width. If you are signed into
your browser and have extension syncing switched on, your browser may carry
those few settings to your other devices. That is your browser's own sync, not
Lexicora's, and your library is never part of it.


Nothing that Lexicora sends. The extension makes no requests of its own to any
server.

Your browser still does the ordinary thing when it draws an entry: a site's
icon, or an image you added by web address, is loaded from wherever it is
hosted, so that host sees a request the same way it would if you opened the
page. Nothing about your library is included in it.

Captured pages are read where you are already browsing. Lexicora reads a page
only when you ask it to — by capturing, bookmarking, or using the prompt — and
it reads the page that is open in front of you, never other tabs and never in
the background.

• Reading the current tab, and running a script in it: to take the page's
  text and metadata when you capture or bookmark it, and to show the capture
  prompt.
• Storage: to keep your library and settings on this device, and to stop
  the browser from deleting your library when disk space runs low — it is the
  only copy.
• Context menus: to add Lexicora's right-click entries.
• Clipboard: to copy an entry or a topic when you ask for it.
• The side panel: to open Lexicora beside the page.

Settings → Storage → "Clear all data" removes your whole library from this
device. Removing the extension from your browser deletes it too. Neither can
be undone, so export first if you want a copy.


If a future version sends anything anywhere — syncing between your devices,
for instance — this policy says so before that version ships, and the feature
is yours to switch on rather than something that happens quietly.


Questions, or something here that does not match what you see? Write to
hello@tgmaurer.dev or
open an issue.