ToolStak

Privacy Policy

Last Updated: July 17, 2026. Learn how we handle your data, cookies, and protect your privacy under GDPR & CCPA.

1. Client-Side Calculations (Zero Uploads)

At Tools Stak, we prioritize the privacy and security of your personal data. Most calculations, text formatting, and conversions (including the PDF Converter, base64 encoders, and calculators) run 100% locally in your web browser using JavaScript. Your input data, keys, file contents, or parameters are never uploaded to our servers.

2. Google AdSense & Third-Party Advertising

We use Google AdSense and third-party advertising partners to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.

DoubleClick DART Cookie:
  • Google, as a third-party vendor, uses cookies to serve ads on Tools Stak.
  • Google's use of the DART cookie enables it to serve ads to users based on their visit to Tools Stak and other sites on the Internet.
  • Users may opt out of the use of the DART cookie by visiting the Google Ad and Content Network privacy policy.

You can choose to disable or selectively turn off our cookies or third-party cookies in your browser settings. For more information on how to opt-out of personalized advertising, please visitGoogle Ads Settings.

3. Google Analytics

We use Google Analytics (specifically GA4) to track and report website traffic, analyze user engagement, and improve our services. Google Analytics collects anonymous data such as pages visited, time spent on the site, bounce rate, and general device or browser descriptors. This information is processed aggregately and does not identify any individual visitor.

Google Analytics relies on cookies to collect this data. You can opt-out of Google Analytics data collection by installing theGoogle Analytics Opt-out Browser Add-on.

4. General Data Protection Regulation (GDPR) Disclosures

For users residing in the European Economic Area (EEA) and the United Kingdom, we process personal data in accordance with the General Data Protection Regulation (GDPR).

Your GDPR Rights:
  • Right of Access & Rectification: You can view and correct any feedback log queries. Since we do not register accounts or collect identity information, this generally applies to anonymous feedback logs if linked to an identifier.
  • Right to Erasure ("Right to be Forgotten"): You can request deletion of any telemetry logs or feedback entries by reaching out to support.
  • Right to Restrict or Object to Processing: You can manage or withdraw consent for Google Analytics and Google AdSense tracking cookies at any time via the cookie consent settings panel.
  • Right to Data Portability: You can request a copy of any feedback entries you have submitted to us.

The lawful basis for processing analytical data and serving personalized advertising is your consent, which you explicitly provide and can manage via our Cookie Consent banner settings.

5. California Consumer Privacy Act (CCPA) Disclosures

For California residents, this section provides additional details about the personal information we collect and your rights under the California Consumer Privacy Act (CCPA).

Your CCPA Rights:
  • Right to Know: You have the right to request information about the categories and specific pieces of personal information we have collected.
  • Right to Delete: You have the right to request the deletion of your personal information collected by us.
  • Right to Opt-Out of Sale or Sharing: We do not sell your personal information for monetary value. However, the sharing of identifiers (like cookies) for personalized advertising via third-party networks may qualify as a "sale" or "sharing" under California law. You can opt-out of this sharing by toggling off the "Personalized Advertising" option in our cookie settings.

6. Anonymous Usage Logs

To understand tool usage patterns, optimize site performance, and monitor active utilities, we log anonymous usage. These logs only capture the tool slug and the date of access (e.g., bmi-calculator on July 16, 2026). We do not collect IP addresses, device descriptors, geolocation coordinates, or input payloads.

7. Policy Updates & Contact Information

We reserve the right to modify this Privacy Policy at any time. Changes will take effect immediately upon being posted. If you have any questions or feedback regarding this policy, feel free to contact us atsupport@toolsstak.com.