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Created June 28, 2026 22:26
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Specter — Privacy Policy
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specter-privacy-policy.md

Specter — Privacy Policy

Last updated: 28 June 2026

Specter ("the extension") is a design-QA inspector that lets you hover or pin any element on a web page to see its box model, spacing, typography, colours, WCAG contrast, borders, and flex/grid layout, and to compare those values against your own design tokens.

The short version

Specter does not collect, store, transmit, or sell any personal data. Everything the extension does happens locally, in your browser, on your device. There are no analytics, no tracking, no accounts, and no external servers.

What data Specter handles, and where it stays

  • Your settings (theme, grid base, AA/AAA contrast level, and overlay toggles) and the optional design tokens you paste in are saved using your browser's local extension storage (chrome.storage.local). This data never leaves your device and is only used to remember your preferences between sessions.
  • Page content you inspect (computed styles, sizes, colours, layout) is read on demand only to display measurements in the extension's panel. It is processed in memory and is never stored, logged, or sent anywhere.
  • Element screenshots you choose to capture are generated locally and saved or copied by you. Specter does not retain or upload them.

Permissions and why they are used

  • storage — to save your own settings and pasted design tokens locally.
  • activeTab — to run the inspector only on the tab you explicitly activate it on.
  • scripting — to inject the inspector overlay into the current page so it can read computed styles and draw the UI.
  • tabs — to capture the visible tab for the element-screenshot feature, to message the active tab, and to open the developer's homepage when you click the credit link.
  • debugger — used only to preview an element's :hover, :focus, and :active states (the "Simulate" feature) via the browser's DevTools protocol. It attaches only while a preview is active and detaches immediately afterward. No page data is read or sent.
  • host access (all sites) — a design inspector must work on whatever page you are viewing. Styles are read locally only; nothing is collected.

Data sharing

None. Specter does not share, sell, or transfer any data to third parties, because it does not collect any.

Children's privacy

Specter does not knowingly collect any data from anyone, including children.

Changes to this policy

If this policy changes, the updated version will be posted at this URL with a new "Last updated" date.

Contact

Questions about privacy: revonatio@gmail.com Made by eneapapa.com

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