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Get started
  • Overview
  • What is Keplar?
  • Quickstart: ask your first question
  • Read a Keplar answer
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  • What changes on a paid plan
  • What Keplar cannot do
How Keplar works
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  • Missing models, timeouts and stand-ins
  • Exact checks for counting and arithmetic
  • Sources, citations and web lookups
  • Small talk and simple questions
  • Why consensus can be wrong
  • A worked example, step by step
Using Keplar
  • Overview
  • Thoroughness modes
  • Write better questions
  • Attach images and video
  • Follow-ups and saved chats
  • Memory: what Keplar remembers about you
  • Share an answer
  • Deep Research
  • Study mode
  • Slideshow creator
  • Voice dictation
  • Use connected apps in chat
Create
  • Overview
  • Create overview
  • Build a site
  • Import a product from a link or photo
  • Generate images
  • Generate video (Beta)
  • Publish your site
  • Connect a custom domain
  • Create limits by plan
Connectors and agents
  • Overview
  • Connected apps (MCP) overview
  • Add a connection
  • Connect with OAuth (Beta)
  • Tool permissions and approvals
  • Agents overview
  • Agent guardrails
  • Agent schedules
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  • Credits explained
  • Rolling usage limits
  • Free plan limits and behavior
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  • When you reach a limit
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  1. Docs
  2. Browser extension
  3. Browser extension privacy and permissions

Browser extension privacy and permissions

Exactly what the Keplar One extension reads, what it sends to Keplar and when, what it keeps on your device, and why it asks for each browser permission.

Updated October 12, 20262 min read

On this page
  1. What it reads, and when
  2. What it sends
  3. What it keeps on your device
  4. Why it needs each permission

The extension is built to read as little as possible, and only after you ask.

What it reads, and when

Nothing on a page is read until you press a button in the popup or choose one of the extension's right-click items. Then it reads only what that action needs: the text you selected, the text of the page, or the area you drag with Search with Keplar One. It works on the tab you chose and never sees other tabs, other windows or the rest of your screen.

What it sends

  • A question from the popup or the right-click menu sends your question and the text you added, using your API key.
  • Search with Keplar One sends the words inside the area you dragged and a JPEG picture of that area, after you agreed once on its first-use card. Follow-ups also send that search's earlier questions and answers.
  • Pages are labeled by host name only, never by the full address.

Everything goes to keplar.one and nowhere else. The extension has no analytics, no advertising and no remote code. Keplar processes the request like a question in the app, using the AI model providers it selects; pictures go only to models that can read images. Neither the extension nor Keplar saves the question, the answer or the picture.

What it keeps on your device

Only two things: your API key, and the fact that you agreed to Search with Keplar One. Both live in the extension's own storage. Removing the key or the extension deletes them.

Why it needs each permission

  • activeTab: read the tab you are on, and capture a picture of the area you drag, only after you click.
  • scripting: run the extension's own packaged script on that tab to read text or draw the search overlay.
  • contextMenus: add the Keplar One items to the right-click menu.
  • storage: keep your key and your one-time agreement.

It requests no access to websites in advance. The full policy is on the privacy page.

Related

  • Search with Keplar One (drag to search a page): Drag over any part of a web page, text or picture, and get one answer from several AI models in a side panel, then ask follow-ups, translate or copy.
  • How Keplar handles your data: Where a question goes, what is stored under your account, which companies process it, what is never sent to model providers, and what Keplar does not do.
PreviousSearch with Keplar One (drag to search a page)NextHow Keplar handles your data

Questions this page does not answer? Write to team@keplar.one, or try Keplar on your own question.

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On this page

  1. What it reads, and when
  2. What it sends
  3. What it keeps on your device
  4. Why it needs each permission