Privacy Policy
Last updated: January 31, 2026
Pipe Diameters stores all your data exclusively in your browser's local storage. We never send this data to our servers.
1. Data Controller
The controller of personal data processed within Pipe Diameters is:
MaYaM Tech Paweł Madej
Address:
Email: Click to reveal email
The Controller processes personal data in accordance with the Regulation (EU) 2016/679 of the European Parliament and of the Council (GDPR) and applicable Polish data protection laws.
2. Scope of Collected Data
Depending on how you use the service, we may process the following categories of data:
2.1. Data Stored Locally (in Your Browser)
- Application data and user preferences
- Interface language and color theme settings
- Cookie consent preferences
- Autocomplete suggestions (optional)
Important: This data is never sent to our servers. It remains exclusively in your browser.
2.2. Data Processed by Server
- Technical data: IP address, browser information (User Agent) - for security purposes
2.3. Analytics Data (with Your Consent)
- Anonymous usage events
- Device and browser information
3. Local Storage
Pipe Diameters uses localStorage technology to store data directly in your web browser.
- Your data is not sent to any servers
- Data is only accessible on this device and in this browser
- You can delete all data at any time (clearing browser data)
- Data is not synchronized between devices
Data Stored in localStorage:
| Key | Purpose | Retention Period |
|---|---|---|
pipes_* |
Application data | Until manual deletion |
pipes_language |
Selected interface language | Until manual deletion |
pipes_theme |
Color theme preference | Until manual deletion |
pipes_consent |
Cookie preferences | Until manual deletion |
4. Analytics and Statistics
4.1. Mixpanel
The service may use Mixpanel to collect anonymous usage statistics. Analytics is disabled by default and activated only after you give your consent (opt-in).
Mixpanel may collect:
- Anonymous session identifiers
- Usage events (e.g., button clicks, feature usage)
- Device and browser information
- Approximate location based on IP (country/city)
More information: Mixpanel Privacy Policy
4.2. Google Consent Mode v2
The service is prepared for integration with Google analytics tools through Google Consent Mode v2. By default, all consents are set to "denied". No data is sent to Google without your explicit consent.
Click the settings icon in the page footer to change your cookie preferences at any time.
6. Security and Protection
6.1. Cloudflare
The service uses Cloudflare services for:
- DDoS attack protection
- Page loading acceleration (CDN)
- CAPTCHA verification (Turnstile) when submitting forms
Cloudflare may process IP addresses and basic technical data. More information: Cloudflare Privacy Policy
6.2. Rate Limiting
To protect against abuse, the service implements rate limiting mechanisms. For this purpose, we process user IP addresses. This data is stored temporarily (maximum 10 minutes) and is used exclusively for security purposes.
6.3. Encryption
All communication with the service is encrypted using HTTPS.
8. User Rights
Under the GDPR, you have the following rights:
8.1. Right of Access (Article 15 GDPR)
You have the right to obtain confirmation whether we process your personal data and to access that data.
8.2. Right to Rectification (Article 16 GDPR)
You have the right to request correction of inaccurate data or completion of incomplete data.
8.3. Right to Erasure (Article 17 GDPR)
You have the right to request deletion of your personal data ("right to be forgotten").
You can delete data stored in localStorage yourself:
- Click the Settings icon in the page footer to open privacy settings, where you can delete all locally stored data and cookies
- Clear browser data in your browser settings
8.4. Right to Restriction of Processing (Article 18 GDPR)
You have the right to request restriction of processing your data in certain situations.
8.5. Right to Data Portability (Article 20 GDPR)
You have the right to receive your data in a structured format (e.g., JSON).
8.6. Right to Object (Article 21 GDPR)
You have the right to object to processing of your data based on the legitimate interest of the controller.
8.7. Right to Withdraw Consent
If processing is based on consent, you have the right to withdraw it at any time. Withdrawal of consent does not affect the lawfulness of processing prior to withdrawal.
8.8. Right to Lodge a Complaint
You have the right to lodge a complaint with a supervisory authority. In Poland, this is the President of the Personal Data Protection Office (PUODO), ul. Stawki 2, 00-193 Warsaw, Poland.
To exercise these rights, contact us at: Click to reveal email
9. Changes to This Policy
The Controller reserves the right to make changes to this privacy policy. We will notify you of significant changes by displaying an appropriate notice on the website.
We recommend regularly checking this page to stay informed about our current privacy practices.
Revision history:
- January 31, 2026 - Initial version of the privacy policy
10. Contact
For matters related to personal data protection, you can contact us:
Email: Click to reveal email
Mailing address:
We respond to data protection inquiries within 30 days of receiving the request.