Last updated: 2026-09-27
Mark Clipper does not collect, transmit, or sell any of your data. There are no accounts, no servers, no analytics, and no API keys.
To capture page content, Mark Clipper reads the page you are currently viewing (its text, tables, and metadata) at the moment you click a capture button or run a workflow. It can read any page you visit because it auto-follows your active tab, which is what lets the side panel always capture the page in front of you. Reading a page is not the same as sending it anywhere. Nothing read from a page is uploaded.
Your editor content, saved workflows, custom instruction presets, and a few UI
preferences are saved on your own computer using the browser’s local storage
(storage.local). This stays on your machine, is never synced to any account or
cloud, and survives a browser restart. You can clear the editor with the Clear
button, or remove everything by removing the extension.
Only what you choose to send. When you use “Copy & Open,” the extension copies text to your clipboard and opens an AI chat (Claude, ChatGPT, or Gemini) in a new tab, and you paste it yourself. The extension never auto-submits anything and never makes network requests of its own.
Mark Clipper is open source. Questions or concerns can be raised as an issue on the project repository.