kidBlocker kidBlocker
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Keep Your Kids Safe Online

A free browser extension that lets you block harmful websites or only allow approved ones. Simple, secure, and syncs across all your devices.

Add to Chrome Add to Edge

Free & Open Source

Features

Blacklist & Whitelist

Choose to block specific websites (blacklist) or only allow approved ones (whitelist). Switch between modes with one click.

Password Protection

Lock the settings panel with a password so children cannot change the configuration.

Cross-Device Sync

Sign in to your Chrome account and all settings sync automatically across your computers.

One-Click Enable

Enable or disable blocking with a single button. No complicated setup needed.

Multi-Language Support

Available in English, Chinese, Japanese, French, and Spanish.

Site Favicons

Each domain in your list displays its website icon for easy identification.

Frequently Asked Questions

What is kidBlocker?
kidBlocker is a free browser extension for Chrome and Edge that helps parents control which websites their children can access.
How does blacklist mode work?
In blacklist mode, all websites are accessible except the ones you add to the block list. Great for blocking specific distracting sites like YouTube or TikTok.
How does whitelist mode work?
In whitelist mode, only the websites you explicitly allow can be accessed. Everything else is blocked. Perfect for young children who should only visit approved sites.
Can my child disable the extension?
You can set a password to protect the settings panel. Without the password, children cannot change the blocking configuration.
Does it work on Edge?
Yes! kidBlocker works on both Google Chrome and Microsoft Edge since they are both Chromium-based browsers.
Is it free?
Yes, kidBlocker is completely free and open source.
Do settings sync across devices?
Yes. If you are signed in to your Chrome or Edge account, all your settings — including your domain lists, mode choice, and password — sync automatically.
What are the default blocked sites?
The blacklist comes pre-loaded with popular video and social media sites: YouTube, Bilibili, TikTok, Vimeo, Niconico, and more. You can add or remove any domain.
What are the default allowed sites?
The whitelist comes pre-loaded with kid-friendly sites: PBS Kids, Kidoodle.TV, BBC iPlayer Kids, Nick Jr., and Netflix Kids.
How do I unblock a website?
Open the kidBlocker popup, find the website in the list, and click the delete icon. Or switch modes entirely.