EXPR ("we", "us", or "our") is a browser-based JavaScript expression evaluation tool. We are committed to protecting your privacy and handling any personal data we collect with transparency and care.
This Privacy Policy describes what information we collect, how we use it, and the choices you have regarding your personal data. By using EXPR, you agree to the practices described in this policy.
EXPR is primarily a client-side tool. Expression evaluation happens in your browser. We do not transmit your expressions to any server by default.
We collect minimal information necessary to operate and improve the service. This falls into two categories:
Information you provide directly:
Information collected automatically:
We use the information we collect for the following purposes:
We do not sell, trade, or rent your personal information to third parties for marketing purposes.
We use cookies and similar tracking technologies to enhance your experience and gather analytics. For a detailed breakdown of the specific cookies we use and how to control them, see our Cookie Policy.
In summary, we use:
You can manage your cookie preferences at any time via your browser settings or our Cookie Preference Centre.
We work with a small number of trusted third-party services to operate EXPR:
Each third party is bound by their own privacy policies and applicable data protection law.
We retain your personal data only for as long as necessary to fulfil the purposes described in this policy:
You may request deletion of your data at any time by contacting us at contact form.
Depending on your location, you may have the following rights regarding your personal data:
To exercise any of these rights, please contact us using the contact form. We will respond within 30 days.
We may update this Privacy Policy from time to time. When we make material changes, we will update the "Last updated" date at the top of this page and, where appropriate, notify you by email or via an in-app notice.
We encourage you to review this policy periodically to stay informed about how we protect your information. Continued use of EXPR after changes are posted constitutes acceptance of the revised policy.
If you have questions, concerns, or requests relating to this Privacy Policy or your personal data, please reach out:
We take all privacy enquiries seriously and aim to respond within 5 business days.
For EU/EEA residents: if you believe we have not handled your data in compliance with GDPR, you have the right to lodge a complaint with your local supervisory authority.