Site Blocker : Lock Any Website with PIN users statistics

PIN-lock any website. Blocks the page from loading until the correct PIN is entered.

Site Blocker is a password-protected website blocker and site locker for Chrome. Pin any website behind a PIN so nothing loads until the right code is entered — a lightweight Chrome extension built for two jobs: keep private things private, and keep distracting things out of reach while you work.

LOCK IT FOR PRIVACY

• Password protect your WhatsApp Web, Instagram, Reddit, email, or banking tab so no one else can open it
• Keep a shared computer, borrowed device, or family computer private without logging out of every account
• Prevent anyone else who uses your computer from opening specific sites
• A simple way to keep certain sites off-limits on a computer the kids or coworkers also use

LOCK IT FOR FOCUS -Stay focused and distraction-free while you study or work — block YouTube, Instagram, Reddit, or anything else that eats your time

• Boosts productivity by removing the habit of opening the same distracting site out of boredom
• A lightweight way to avoid distractions without deleting accounts or changing your whole setup

HOW IT WORKS

• Set a Master PIN to open Site Blocker's settings, and a Site PIN that unlocks the websites you protect.
• Add any website to your vault — use domain blocking to lock an entire domain, or block just a single page or path.
• From then on, opening that site — or switching back to an already-open tab — asks for your Site PIN first. No PIN, no access.

KEY FEATURES

• Lock any website: full domain blocking or a specific page/path
• Escalating lockout protection: repeated wrong PIN attempts trigger longer cooldowns, built-in brute-force protection that makes guessing pointless
• One-tap Master Switch to pause protection instantly, and resume just as fast
• Dark and light themes that stay consistent across every screen
• Clean, fast popup UI with no clutter

BUILT FOR PRIVACY Your Master PIN and Site PIN are never stored in plain text — each is encrypted with a 100,000-iteration hash before it's saved. Everything lives in your browser's local storage only; nothing is uploaded, and we don't operate a server for that data, so there's nothing to leak.

FREE AND PRO The free plan locks 1 website at no cost — no account, no sign-up required. Site Blocker Pro removes that limit for unlimited locked sites, with flexible billing: daily trial, monthly, 6-month, yearly, or a one-time lifetime purchase. Cancel a subscription anytime, instantly, from inside the extension.

Site Blocker works on any regular website (http/https) in Chrome and other Chromium-based browsers.