When you create a useful widget, calculator or tool on web page, another website may copy the code and run it without your permission. This Domain Lock JS Generator adds a lightweight code so it works only on the domains you authorize. It provides HTML code protection while keeping the generated output compact and easy to manage. If you want to lock your JavaScript code to your domain without installing software this HTML Code Protector Tool offers a quick solution.
Domain Lock Code Generator
Allow your HTML, CSS and JavaScript code to work only on approved domains.
Protected Code Ready
Copy the complete code and use it where you would normally place the original.
How to use this tool
Insert the complete <HTML>, <CSS> and <JavaScript> code you want to protect.
Enter every authorized domain or website URL on a separate line.
Allow the domain with www or select exact-domain matching for stricter control.
Create the protected version, copy it and replace your original installation code.
Features
Use complete snippets containing HTML, CSS and inline JavaScript in one place.
Authorize several websites at once and automatically remove duplicate entries.
Full URLs, paths, uppercase letters and trailing slashes are converted safely.
Add a small JavaScript code domain check without large decoding.
Authorize a main domain or enter a particular subdomain when it needs separate access.
Show custom error text or redirect unauthorized visitors after five seconds.
Frequently Asked Questions
What is a Domain Lock JS Generator?
A Domain Lock JS Generator creates a website check using JavaScript code. When the current website matches an authorized domain, the website visitor can continue. If the website does not match, the tool replaces the protected HTML area with the error message.
How do I Lock Your JavaScript Code to Your Domain?
Paste your complete code into the generator, enter the website domains on which it may run, and generate the protected output. Replace the old installation code with the complete protected code generated by the tool.
What is the difference between “Domain and www” and “Exact domain only”?
“Domain and www” treats example.com and www.example.com as the same authorized website. “Exact domain only” permits only the hostname entered by the user. For example, authorizing example.com will not automatically authorize www.example.com in exact mode.
Can I authorize a subdomain?
Yes. Enter the complete subdomain, such as tools.example.com, as a separate authorized entry. It will be treated as its own hostname.
How does the optional redirect work?
When a redirect URL is entered, an unauthorized visitor sees the error text and is redirected after five seconds. When the field is empty, the generator leaves all redirect logic out of the generated output.
Does the tool modify my original design?
The generator keeps the submitted HTML, CSS and inline JavaScript readable and does not rename the original IDs, classes or functions. It adds a generated container and the small authorization check required for domain locking.
Does the tool upload my code to a server?
No. The entered code and authorized domains are processed locally by the page instead of being uploaded for server-side conversion.
Conclusion
The Domain Lock JavaScript Generator provides a way to add website control to a widget, calculator or web based tool. Custom error text helps explain unauthorized use, while the optional redirect can guide visitors to the correct website. This approach is useful when you want practical html code protection. For sensitive logic codes or credentials codes, server-side protection remains essential. For everyday frontend projects, this html code protector offers a fast and convenient way to keep normal installations associated with approved domains.
