MARKGRAB · PRIVACY
MarkGrab Privacy Policy
LAST UPDATED 14 JULY 2026
MarkGrab (Page to Markdown) is a Chrome extension by Francisco Macedo, part of Browserbelt. This policy explains, in plain terms, exactly what data the extension handles and where it goes. It is specific to MarkGrab — each Browserbelt tool has its own policy.
01Single purpose
MarkGrab converts the page you're viewing into clean Markdown on your clipboard.
02What data is sent, and where
- The cleaned HTML text of the current page — plus the conversion prompt — is sent to Google's Gemini API to produce Markdown. In BYOK mode it goes directly from your browser to Google with your own key; in subscription mode it goes through the Browserbelt proxy (apps.fmacedo.com), which forwards it to Gemini and records only usage counts.
- Only the page you explicitly extract is sent, and only when you click Convert. No screenshots are ever taken.
03Who receives data
Depending on how you use the extension, data may be handled by the following parties. In bring-your-own-key mode, your AI requests go directly to Google and never touch our servers.
- Google (Gemini API) — processes the content you send for AI
- Browserbelt server (apps.fmacedo.com) — only in subscription mode, to meter usage and forward the request to Gemini
- Stripe — payment processing, if you subscribe
- Resend — sends your sign-in emails, if you create an account
04What stays on your device
Your Gemini API key, model preferences, and account token are stored only in your browser's local storage on this device. They are never synced across profiles and never sent to us in BYOK mode.
05Chrome permissions, and why
- sidePanel — Opens the tool's panel next to the page.
- activeTab — Reads the current tab only after you click Run — no standing access to your browsing.
- scripting — Injects the small script that reads the page or captures your selection.
- storage — Saves your settings, history, and API key locally on your device.
06Data categories
Under the Chrome Web Store’s disclosure categories, MarkGrab handles:
- Website content (the page's HTML text)
- Authentication information (your stored API key / account token)
07Consent before the first send
Before MarkGrab sends anything for the first time, it shows a disclosure screen naming every recipient of your data and asks you to accept. Nothing is sent until you do. If our data practices ever change, we will tell you in-product.
08Remote code
MarkGrab contains no remote code. It never downloads and executes scripts; it only calls documented data APIs over HTTPS and renders their responses as text or on a map.
09Limited Use
CHROME WEB STORE LIMITED USE
This extension’s use and transfer of information received from Google APIs adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements. We do not sell your data, use it for advertising or creditworthiness, or transfer it to anyone except to provide or improve this single feature. No human reads your content except as strictly necessary for security or to comply with the law.
10Data retention & your rights
In bring-your-own-key mode we store nothing about your usage. If you use a subscription, our server records only usage counts (which tool, model, and token totals) to meter the fair-use cap — never the content you send. You can delete your account and all associated data at any time from your account page.
11Children
MarkGrab is a general-purpose developer/productivity tool and is not directed at children under 13.
12Contact
Questions about this policy? Email hello@fmacedo.com. See also our Terms of Service and the other Browserbelt policies linked in the footer.