Your payload stays in the browser.

Formatting, validation, repair previews and search run locally. The application does not upload payloads, include them in URLs or save them in cookies or local storage. No advertising scripts are enabled.

Copy and Download act only when requested. Your browser and device may retain clipboard contents or downloaded files. Clear removes the displayed content; it does not guarantee secure memory erasure.

Hosting and contact

Cloudflare receives ordinary website request information, including your IP address, when you load the page. See Cloudflare’s privacy policy. Emailing feedback shares the content with the operator and email providers. Please use synthetic examples.

Cloudflare Web Analytics measures page views, visits and page performance without analytics cookies. It receives technical browsing information, such as the page path, referrer and browser characteristics; calculator inputs and converted payloads are not sent by the tools. See Cloudflare Web Analytics documentation. Browser blocking and collection limits can make visit counts incomplete.