Free Browser Extension
Every page you visit sells a piece of you. DataReceipt detects trackers in real time and shows you exactly how much corporations earn from your data.
Open Source · No account · No data collection · MIT License
How it works
DataReceipt runs silently in your browser, watching every network request each page makes — then translating those requests into real money.
01 / DETECT
Every network request on every page is checked against a database of known advertising and tracking domains.
02 / IDENTIFY
Tracker domains are attributed to their parent company: Google, Meta, Amazon, Microsoft, and 13 others.
03 / CALCULATE
Revenue estimates use official annual reports (FY2023) divided by tracked users and pages. Weighted per region and tracker type.
04 / SHOW
A minimal overlay appears on every page, updating in real time as new trackers are detected.
Features
A minimal digital receipt appears on every page, showing which companies earned what from your visit — updating in real time.
Your total data value accumulates across every browsing session, showing the true long-term value of your attention.
Switch language and currency directly in the overlay. EUR, USD, GBP, JPY, and more.
Download a complete audit of your tracked data profile — useful for understanding your digital exposure over time.
All detection and calculation happens entirely in your browser. No data ever leaves your device.
Click the extension icon to show or hide the overlay at any time. Statistics keep accumulating in the background.
Privacy
It would be deeply ironic for a privacy transparency tool to collect your data. DataReceipt is built on one principle: everything stays on your device.
DataReceipt makes no network requests of its own. It does not send analytics,
crash reports, or any data to any server. Your browsing history, tracker data,
and statistics are stored exclusively in your browser's local storage and never
leave your device. Delete everything at any time via the Reset button or by
uninstalling the extension.
Read the full Privacy Policy →
FAQ
They're estimates, not exact figures. Revenue values are calculated from official annual reports (FY2023: Alphabet, Meta, IAB, eMarketer), divided by estimated tracked users and pages per year, then weighted by region and tracker type. Real values vary by ±50% depending on geography, browsing habits, and ad market conditions. The goal is to give a meaningful order of magnitude — not a billing statement.
No. DataReceipt only checks the URL of each network request against a list of known tracker domains — it's a simple string lookup, not a network call. It does not block, redirect, or modify any requests. Performance impact is negligible.
No — DataReceipt is a transparency tool, not a blocker. It shows you what's happening without interfering. If you want to block trackers, pair it with uBlock Origin. The two work well together.
Yes. DataReceipt is MIT licensed. You can inspect exactly what it does — no black boxes.
Get started
Free. No account. No data collection. Works in 30 seconds.
Add to FirefoxOpen Source · MIT License · No account required · Uninstall anytime