Privacy Policy

1. Information I Collect

a) Personal Information

When you sign in using Google, I may collect:

• Your email address
• Your display name
• Your Google account avatar URL, if provided by Google

b) User Content

If you use cloud file storage, I store files, folders, file names, file contents, file sizes, content hashes, and related metadata needed to save and retrieve your projects. If you use the compiler as a guest, files and drafts may be stored locally in your browser using IndexedDB/localStorage.

c) Contact and Feedback Messages

If you submit the contact form or feedback form, I collect the name, email address, and message you provide. These messages are delivered to a private Discord webhook so I can respond or review the feedback.

d) Usage Data

I collect anonymous usage data through:

• Google Analytics
• Microsoft Clarity

This may include:

• Pages visited
• Time spent on site
• Device and browser information
• Interaction behavior (clicks, scrolling)

e) Cookies & Local Browser Storage

I use cookies and browser local storage to:

• Maintain login sessions using a secure HTTP-only session cookie
• Remember your theme preference (light/dark mode)
• Save guest compiler files, drafts, editor settings, UI preferences, and demo cache data
• Analyze traffic via analytics services
• Serve advertisements via Google AdSense, where ads are enabled

Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. You may opt out as described in the Advertising section below.

2. Cookie Policy

This website uses the following types of cookies:

Essential Cookies

Required for the service to function. These include the HTTP-only session cookie used after Google Sign-In and browser storage values used for editor settings, guest files, theme, and UI state. You can disable browser storage or cookies in your browser, but some features may stop working.

Analytics Cookies

Used to understand how visitors use the site. Provided by Google Analytics and Microsoft Clarity. These may set cookies or use similar tracking technologies.

Advertising Cookies (Google AdSense)

Google AdSense, a third-party advertising service operated by Google LLC, may serve ads on this website. Google uses cookies to serve ads based on your prior visits to this website or other websites across the Internet. This enables Google and its partners to show personalized ads where personalized ads are permitted.

You can control or opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of third-party vendor use of cookies for personalized advertising by visiting www.aboutads.info or the Network Advertising Initiative opt-out page.

3. Google AdSense & Advertising

This website may participate in the Google AdSense program. By using this site, you acknowledge that:

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet.
• You may opt out of personalized advertising by visiting Google Ads Settings.
• Alternatively, you can opt out of third-party vendor cookie use for personalized advertising by visiting www.aboutads.info.

Ad Networks Used

The following third-party ad vendors or networks may serve ads on this site:

• Google AdSense — Google Privacy Policy · Opt-Out

If you have not opted out of third-party ad serving, the cookies of other third-party vendors or ad networks may also be used to serve ads on this site if Google enables those partners. Refer to each vendor's privacy policy and opt-out instructions via the links above.

EU / EEA Users (GDPR)

If you are located in the European Union, European Economic Area, or another region that requires consent for personalized ads or analytics, consent requirements are handled through the relevant Google and browser controls where available. You may also use the opt-out links above.

4. How I Use Your Information

I use collected data to:

• Provide and operate the compiler service
• Store and retrieve your files
• Authenticate your account and keep your session active
• Respond to contact and feedback messages
• Improve website performance and user experience
• Analyze usage patterns
• Serve and display advertising via Google AdSense, where enabled
• Measure ad performance and improve ad relevance

5. Third-Party Services

I use the following third-party services that may collect data independently:

• Cloudflare (hosting, Workers, and D1 database infrastructure) — Privacy Policy
• Google Analytics (Google LLC) — Privacy Policy
• Google AdSense (Google LLC) — Privacy Policy · Opt-Out
• Google Sign-In (Google LLC) — Privacy Policy
• Microsoft Clarity (Microsoft Corporation) — Privacy Policy
• Discord (contact and feedback message delivery) — Privacy Policy

Each of these services has its own privacy policies governing how they handle data. I encourage you to review them via the links above.

6. Your Rights (GDPR & Privacy)

Depending on your location, you may have the following rights regarding your personal data:

• Right of access — Request a copy of the data I hold about you
• Right to erasure — Request deletion of your account and stored files
• Right to object — Object to personalized advertising at any time via Google Ads Settings
• Right to withdraw consent — Withdraw cookie or advertising consent at any time
• Right to portability — Request an export of your stored data

To exercise any of these rights, please use the contact page. For advertising-related opt-outs, use the links in the Advertising section above.

California Residents (CCPA)

California residents have additional rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information is collected, the right to delete it, and the right to opt out of the sale of personal information. I do not sell personal information.

7. Data Storage & Retention

Signed-in user data, including account information and cloud files, is stored using backend database infrastructure. Session cookies expire automatically after a limited period. Guest files, editor settings, and drafts may remain in your browser until you delete them or clear browser storage.

Data is retained for as long as needed to provide the service, maintain security, respond to support requests, or comply with legal obligations. You may request deletion of cloud account data through the contact page.

8. Security

I take reasonable technical and organisational measures to protect your data against unauthorised access, loss, or misuse. However, no internet transmission or electronic storage system is 100% secure. Use the service at your own risk and contact me immediately if you suspect any unauthorised use of your data.

9. Children

This service is intended as an educational programming tool but is not directed specifically to children under 13. If you believe a child has provided personal information without appropriate consent, please contact me so I can review and delete it where required.

10. Changes to This Policy

I may update this Privacy Policy from time to time. When I do, I will update the "Last updated" date at the top of this page. I encourage you to review this page periodically. Continued use of the service after changes are posted constitutes acceptance of the updated policy.

11. Contact

For any questions about this Privacy Policy, your data, or advertising practices, contact me through the contact page.

For additional resources on privacy and advertising, see:

• Network Advertising Initiative (NAI)
• Digital Advertising Alliance (aboutads.info)
• cookiechoices.org