About string.is

string.is is an open-source, privacy-friendly online string toolkit for developers.

Like most developers, I need to perform the same string operations regularly, but I’m paranoid about pasting sensitive data into third-party online tools.

I started to wonder what the ideal conversion tool might look like, and came up with some simple goals:

  1. It should be open-source.
  2. It should not set any cookies.
  3. It should have a strict Content Security Policy.
  4. It should be extremely opinionated about dependancies, and only use well-known, well-supported libraries.
  5. It should try to detect the format of the input, and intelligently choose output options.

string.is was built to meet those goals, and provide a secure, trustworthy string conversion tool.

Alternatives

  • DevUtils by Tony Dinh is a great open-source MacOS desktop tool.
  • DevToys by Etienne Baudoux is an open-source Windows desktop tool which looks very good, although I haven't tried it.
  • CyberChef by the UK’s GCHQ provides an exhaustive set of conversion and crypto tools, and works both online and offline.

Acknowledgements

string.is wouldn’t exist without the following open-source libraries:

The icon is based on developer by Achmad Mulyana.

Contact