Your input stays in your browser.
This notice applies to the current toolbox, updated September 27, 2026.
Tool inputs and results
Formatting, encoding, comparison, date conversion, random generation, regex testing, JWT decoding and hashing run in the browser. We do not send tool input or results to a server, include them in URLs, or write them to cookies, localStorage or other persistent storage. The site does not save results after a page is closed. Any page restoration performed by your browser is controlled by its own settings.
Clipboard
The site only attempts to write a result to your clipboard when you choose Copy result. It does not automatically read the clipboard. If permission is denied, you can select and copy the text manually.
Page requests and language
Opening a page requests its HTML, styles and scripts. There are no third-party ads, remote fonts or analytics scripts. Language is selected through the page URL, without a language cookie or saved input.
Server logs
To diagnose availability issues, the server records request time, method, page path, status and response size. Access logs omit IP addresses, query strings, referrers and browser identifiers. Critical error logs may contain request and network diagnostic information. Logs are used only for operations and rotated daily, with retention of up to approximately 14 days. Do not put sensitive information in URL paths or parameters.
Future changes
If analytics or advertising are introduced, this notice will be updated before they are enabled to explain actual data use.