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COEUS
Install
Browser extension

Bring Coeus into the browser.

Your security tools live beside the page. Start with what you see, inspect it locally, and choose where to look next.

Available in the Chrome Web StoreFree to use · Chrome and Edge
  1. 01

    Add it to your browser

    Choose Add to Chrome. In Edge, use the same listing and allow extensions from other stores when asked.

  2. 02

    Open Tools

    Pin Coeus from the extensions menu, then open its side panel beside any page.

  3. 03

    Work from the page

    Paste an indicator or choose Scan page. Decode, extract and inspect locally, then open the matching sources you choose.

In context

Stay with the page.

A short illustration of two ways to move from page content into the Coeus side panel.

The product, in context

example.org/security/advisory

Security advisory / Example

Reviewing an unusual command

A support message included an encoded command. Select it to inspect its contents before following anything inside it.

powershell.exe -EncodedCommand VwByAGkAdABlAC0ATwB1AHQAcAB1AHQA...

The page remains yours to read and use.

COEUS

Tools / Text Decoder

Encoded command

Input found on this page

powershell.exe -EncodedCommand VwByAGkAdABlAC0A...

Decoded locally

Write-Output "https://example.org/login"

URL found · Ready to inspect

Shortcuts

What the keyboard does.

Keyboard shortcuts registered by the extension
CommandWindows and LinuxmacOSDoes
scan-pageCtrl⇧K⌘⇧KInspect this page with Coeus tools
open-dashboardunsetunsetOpen Coeus tools
_execute_actionCtrl⇧U⌘⇧UOpen the Coeus side panel
Permissions

What it can access, and why.

Each permission Coeus requests, with the reason given in its Chrome Web Store listing.

Manifest permissions and the justification submitted with the store listing
PermissionWhy
contextMenusSend selected text and images to local tools, open matching source links and inspect the current page for tool inputs.
storageSettings, favourites, custom sources, source overrides and compatibility with previously saved records. Tool drafts and raw page selections are not persisted by these new flows. No source API keys.
tabs, tabGroupsOpen and reuse source tabs grouped by lookup, associate a tool handoff with its originating tab and isolate windows. Existing source-capture APIs remain compatible with older clients.
alarmsMaintain source-content refresh schedules and timed keep-awake release. Forever keep-awake has no expiry alarm.
powerThe optional keep-screen-awake setting, including timed and Forever modes.
sidePanelShow local security tools and source controls beside the current page.
scripting, activeTabRead bounded selected or visible page content when requested; supply enabled suggestions and the opt-in HTTP password-form notice without reading typed password values. Existing capture APIs retain their packaged reader behavior.
offscreenRetained compatibility reader APIs parse fetched source HTML in an offscreen document. New tool analysis uses local parsers/workers in the served UI.
unlimitedStoragePreserve existing local saved records, indexes and source caches without imposing a new storage cap on upgrades. No install warning.
host_permissions (`<all_urls>`)Existing broad website access is unchanged. Investigators use advisories, tickets and source sites across arbitrary hosts; packaged on-demand readers and optional page suggestions/notices inspect bounded content there. Users can withhold access through browser site settings. Restricted browser pages are unavailable. No static content scripts are registered by this candidate. The isolated coeus.tools UI frame has no extension privileges and communicates only through validated messages.