Privacy Policy
How JSONFormatTool.org handles your data — in short, it stays on your device.
Last updated: August 18, 2026
Your JSON stays in your browser
The JSON you paste, type, or upload into any tool on JSONFormatTool.org is processed entirely within your web browser using JavaScript — sometimes in a background Web Worker thread, which still runs on your own device. Your input is not transmitted to, stored on, or logged by any server operated by us. When you close or reload the page, that data is gone.
Local browser storage
We use your browser’s local storage for two non-tracking purposes: remembering your theme preference (light or dark), and, if a consent choice is presented, remembering whether you accepted or declined cookies. These values stay on your device and are not tracking identifiers.
Advertising
This site can display advertising through Google AdSense to keep the tools free. When advertising is enabled, Google may set cookies and use device data to serve and measure ads, subject to Google’s own privacy policy. Ads are loaded only after you accept via the consent banner where a consent choice is required, and never before. We never share the JSON or other content you work with — that data stays in your browser and is never part of ad requests.
Analytics
If usage analytics are enabled on this site, they record only anonymous, aggregate interactions (for example, which tool was opened or that a conversion completed) with IP anonymization, and only after you consent where consent is required. We never send the content you paste, upload, or generate — no JSON, keys, values, filenames, inputs, or outputs are ever included in analytics. See our Cookie Policy for the storage details.
Data we do not collect
We do not require an account and do not collect names, email addresses, or payment information through the tools. If you contact us by email, we will receive whatever information you choose to include in that message.
Third-party hosting
Like any website, the pages and assets are delivered over the internet by a hosting/CDN provider, which may process technical request data (such as IP address) to serve the site securely. This is standard infrastructure processing and is separate from the JSON you work with, which never reaches a server.
Children’s privacy
The site is a general-purpose developer utility and is not directed at children, and we do not knowingly collect personal information from them.
Changes to this policy
We may update this policy as the site evolves. Material changes will be reflected by updating the date above.
Contact
Questions about this policy? See the contact page.