Developer tools that never upload what you paste
Format JSON, convert YAML and CSV, encode Base64 and URLs, hash files, decode a JWT, make UUIDs and test regular expressions. All of it runs in this tab: no server sees your tokens, keys and config.
What you paste stays in this browser tab. There are no saved links, no history and nothing in local storage unless you ask: only settings such as the indent width are remembered. The page is not even allowed to send data anywhere else.