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Privacy Policy
Last updated: 14 February 2026
This Privacy Policy describes how JSONfn ("we", "us", "our") handles information when you use https://www.jsonfn.com.
1. Data We Process
JSONfn is a browser-based developer tool. We do not require user accounts. JSON you paste into the tool is processed in your browser and is not intentionally stored by us on any servers.
When you visit our website, the following data may be processed by us and/or our third-party advertising partner:
- IP address
- Browser and device information
- Approximate geolocation inferred from IP
- Page visits, ad interactions, and related technical signals
- Cookie and similar identifier data
2. Advertising and Third-Party Cookies
We use Adsterra to serve advertisements on parts of this website. Adsterra and its partners may use cookies and similar technologies to serve, measure, and optimize ads.
Adsterra publisher terms require publishers to provide a public privacy disclosure and a cookies consent message where cookies are placed/read for ad delivery.
3. Legal Basis (EU/EEA/UK)
- Consent: advertising cookies and similar tracking technologies
- Legitimate interests: security, core website operation, and fraud prevention
4. Consent, Opt-Out, and Withdrawal
You can limit or block cookies in your browser settings at any time. Adsterra also states that disabling tools may be available from some third parties, but users can always disable cookies directly in browser controls.
For Adsterra privacy-rights requests (including California rights such as opt-out of sharing requests), see Adsterra's privacy contacts and rights process in their Privacy Policy.
5. Third-Party Policies
For details on how Adsterra handles data, see:
- Adsterra Privacy Policy: https://adsterra.com/privacy-policy-managed/
- Adsterra Cookies Policy: https://adsterra.com/cookies/
- Adsterra Terms for Publishers: https://adsterra.com/publishers-terms-managed/
6. Data Protection Rights
Depending on your jurisdiction, you may have rights to access, correct, delete, or restrict personal data processing, and to object to certain processing.
7. Changes to This Policy
We may update this policy from time to time. Changes are posted on this page with a revised date.
8. Contact
For privacy questions about JSONfn: hello@jsonfn.com