Applies to: Vizu Lookup — read by picture (the "extension"), version 0.1.0 and later.
Last updated: 18 October 2026.

Vizu Lookup is a reading aid. It looks up the word you point at and shows you a picture
of it, its definition, and a translation. The whole design is "ask about one word, not
about the page", and this policy describes exactly what that means in practice.


When you look up a word, the extension sends the word or phrase itself, plus the
language pair you chose in Options, to the service that answers that part:

| Part of the card | Requested from | Sent |
| --- | --- | --- |
| Picture | commons.wikimedia.org, www.wikidata.org, <lang>.wikipedia.org | the word |
| Definition | <lang>.wiktionary.org, <lang>.wikipedia.org | the word |
| Translation | Google Translate or MyMemory, whichever you select (translation is off by default) | the word |

As with any request over the open internet, the service also sees your IP address and the
standard browser User-Agent. That is the full list.

• The page you are reading: no URL, no title, no domain, no referrer.
• Surrounding text, selections you do not look up, and anything you read.
• Browsing history, bookmarks, cookies, credentials, or any identifiers.
• No analytics, no telemetry, no tracking, no advertising, no server of ours. There is no
  first-party backend for this extension to send anything to.

• Settings (triggers, languages, translation provider, appearance) in the browser's
  extension storage.
• A lookup cache in IndexedDB: the results the extension already fetched for a word,
  so you do not re-request it. It is bounded in size and age, is stored only on your
  machine, and is cleared by clearing the extension's data or uninstalling.
• Books you open in the reader (EPUB/PDF) are read from your disk and rendered locally.
  They are never uploaded anywhere, and their text is only sent to the table above if you
  look up a word inside them.

You can turn the translation provider off in Options, which removes the only non-Wikimedia
request. Uninstalling the extension deletes its storage and cache. No account exists and
nothing is recoverable by us, because nothing is stored by us.


Questions: accelerawebsite@gmail.com