Privacy Policy

Last updated: April 5, 2026

DevToolX (hereinafter referred to as "this website") values your privacy. This policy explains how we collect, use, and protect your data.

Data Processing Principles

All tool computations on this website run entirely in your browser. Any data you enter (JSON, Base64, UUID, etc.) is never sent to any server or stored. We cannot access or view the content you input while using our tools.

Data We Collect

Google Analytics (GA4)

This website uses Google Analytics 4 to understand site usage. GA4 collects the following anonymous information:

• Page views (which pages you visited)
• Tool usage statistics (which tools are used and how often)
• Search queries (what keywords you searched on the site)
• Device information (browser type, operating system, screen resolution)
• Approximate location (country/city level, not precise location)
• Traffic sources (where you came from)

GA4 sets cookies in your browser (e.g., _ga, _ga_*) to distinguish visitors. These cookies do not contain personally identifiable information. For details, see Google Privacy Policy.

Local Storage

This website uses browser localStorage to store your theme preference (light/dark mode). This data is stored only on your device and is never sent to any server.

Google AdSense Advertising

This website may use Google AdSense to display ads. Google and its advertising partners may use cookies to show relevant ads based on your browsing history. You can manage or disable personalized ads via Google Ad Settings .

Data We Do Not Collect

• Personally identifiable information (name, email, phone number, etc.)
• Any content you enter in the tools
• Account or login information (this website does not require registration)

Third-Party Services

This website uses the following third-party services:

• Google Analytics 4 — Website traffic analytics
• Google AdSense — Ad serving (planned)

Policy Changes

This privacy policy may be updated from time to time. Updated policies will be published on this page with the "Last updated" date revised.

Contact Us

If you have any questions about this privacy policy, feel free to reach out via GitHub Issues .