Passlit Openbook

About

Passlit Openbook shows you every company tracking you in real time — and blocks them automatically.

Every time you visit a website, dozens of companies silently collect data about you. Ad networks, data brokers, and retargeting platforms follow you across the web, building detailed profiles without your knowledge or consent. Most people have no idea this is happening.

Passlit Openbook makes the invisible visible.


WHY YOU NEED THIS

Your browsing data is worth billions. Companies like Google, Meta, Taboola, Criteo, LiveRamp, and hundreds of others collect it, package it, and sell it — without asking. Every page you visit, every article you read, every product you look at is logged, shared, and used to target you with ads and manipulate your online experience.

Passlit Openbook puts you back in control.


WHAT OPENBOOK DETECTS

Openbook identifies trackers across 6 categories:

- Ad Targeting — networks that follow you across the web to serve targeted ads
- Data Brokers — companies that buy, sell, and package your behavioral data
- Analytics — platforms that record your every click, scroll, and session
- Social — social media tracking pixels embedded across millions of sites
- Fingerprinting — tools that identify you without cookies, using your device characteristics
- Other — additional tracking infrastructure operating in the background

On a typical news site, Openbook detects 10 to 30 trackers. On high-traffic sites like Yahoo, CNN, or Fox News, it often detects 50 to 100+.


FREE FEATURES — NO ACCOUNT REQUIRED

- Detects trackers from 50+ companies including Google, Meta, Amazon, TikTok, LinkedIn, Criteo, Taboola, LiveRamp, and more
- Shows tracker count, company name, category, and activity level in real time
- Updates live as new trackers load on the page
- Blocks 50+ known ad targeting and data broker domains at the network level — scripts cannot execute, pixels cannot fire
- Injects Global Privacy Control (GPC) on every page you visit — a legally recognized do-not-sell signal under CCPA, CPA, VCDPA, and 9 other US state privacy laws
- Draggable badge that positions anywhere on screen
- Works on all major websites including news, finance, shopping, social media, and job boards
- No account required to use free features


PASSLIT SHIELD — AUTOMATED PROTECTION

Upgrade to Passlit Shield for full automated tracker removal. Shield runs silently in the background so you never have to think about it.

Shield features:
- Automatic tracker data wipe every 30 minutes — cookies, cached files, and localStorage data planted by trackers are cleared automatically
- Manual wipe on demand — open the panel and wipe all tracker data from the current session in seconds
- Live blocking counter showing exactly how many trackers were stopped on each page
- Real-time session counter showing total files cleared across your browsing session
- Shield Active indicator with live status
- Individual plan from $9.99/month — Family plan from $19.99/month
- Cancel anytime, no contracts


HOW IT WORKS

1. Install Passlit Openbook — free, no account required
2. Visit any website
3. The Openbook badge appears in the top right corner showing your tracker count
4. Click the badge to see every company tracking you, what they do, and how aggressive their tracking is
5. Upgrade to Shield to block and remove them automatically


GLOBAL PRIVACY CONTROL

Passlit Openbook automatically injects a Global Privacy Control signal into every page you visit. GPC is legally recognized as a valid opt-out of data sale under:

- California Consumer Privacy Act (CCPA)
- Colorado Privacy Act (CPA)
- Virginia Consumer Data Protection Act (VCDPA)
- Connecticut Data Privacy Act
- Montana Consumer Data Privacy Act
- Oregon Consumer Privacy Act
- Texas Data Privacy and Security Act
- And several additional US state laws

Companies receiving the GPC signal are legally required to honor it as a do-not-sell request.


PRIVACY POLICY

Passlit Openbook does not collect your browsing history. All tracker detection happens entirely on your device. No browsing data is sent to Passlit servers. The only data transmitted is an anonymous count of trackers detected per site, used solely to improve detection accuracy.

Full privacy policy: passlit.com/privacy
Terms of service: passlit.com/terms


ABOUT PASSLIT

Passlit is a privacy technology company. Our mission: verify humans in a world of bots and protect people from surveillance capitalism. Passlit Openbook is free because privacy should be accessible to everyone.

Learn more at passlit.com