Overview

Redline lets a content editor fix a live web page directly in the browser. You open a side panel, edit the page's text and images inline, watch a running list of changes with inline diffs, then export everything as a =.redline-bundle.zip=—a machine-readable changeset a developer or coding agent can re-apply and trace back to the source.

The point is to close the loop between "this copy is wrong" and "here's the exact fix" without screenshots, sticky notes, or a shared doc. The editor works where the content actually lives.

How It Works

Clicking the toolbar icon opens the side panel. The panel injects a small engine into the active tab and drives it over messaging—the panel itself never touches the page DOM directly. Edits are captured as a per-origin session and persisted in the browser's local storage, so your changes survive reloads and come back the next time you open the panel on that site.

When you're done, export bundles the changeset into a zip you download. Import reads a bundle back in. There is no server, no account, and no AI in the loop—the whole thing runs locally in the browser.

Privacy

Redline collects nothing and sends nothing off your device. All edits live in the browser's local storage until you clear them. See the full privacy policy.