Privacy Policy
Last updated: February 2026
At jsonl.co, your privacy is our top priority. This policy explains how we handle your data.
No File Data Collection
All JSONL file processing happens entirely within your browser. Your files are never uploaded to our servers. We do not collect, store, or have access to any file content you open or edit on jsonl.co.
Local Storage
We may use browser local storage to save your preferences such as language selection and theme settings. This data remains on your device and is never transmitted to any server.
Analytics
We may use privacy-friendly analytics to understand general usage patterns such as page views and feature usage. No personally identifiable information is collected through analytics.
Cookies
We use cookies necessary for site functionality (such as language preference) and for advertising purposes. Third-party advertising partners, including Google, may use cookies to serve ads based on your prior visits to this website or other websites. You can opt out of personalized advertising by visiting Google Ads Settings (https://adssettings.google.com) or the Network Advertising Initiative opt-out page (https://optout.networkadvertising.org).
Advertising
We use Google AdSense to display advertisements on our website. Google AdSense may use cookies and web beacons to collect information including your IP address, browser type, and browsing behavior to serve relevant ads. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the Internet. For more information about how Google uses data, please visit Google's Privacy & Terms page (https://policies.google.com/technologies/partner-sites).
Your Privacy Rights (GDPR/CCPA)
If you are located in the European Economic Area (EEA), United Kingdom, or California, you have specific rights regarding your personal data. These include the right to access, correct, or delete your data, the right to restrict or object to processing, and the right to withdraw consent at any time. For EEA users, we obtain consent before placing non-essential cookies. You can manage your cookie preferences through the consent banner displayed on your first visit. To exercise your rights, please contact us through our website.
Third-Party Services
If you choose to log in using OAuth providers (Google, GitHub), those services have their own privacy policies. We only receive basic profile information (name, email, avatar) necessary for account creation.
Contact
If you have questions about this privacy policy, please contact us through our website.