This gem provides a convenient API for generating per-user self-signed root certificates.

Development Status


HTTP/2 requires SSL in web browsers. If you want to use HTTP/2 for development (and you should), you need to start using URLs like https://localhost:8080. In most cases, this requires adding a self-signed certificate to your certificate store (e.g. Keychain on macOS), and storing the private key for the web-server to use.

I wanted to provide a server-agnostic way of doing this, primarily because I think it makes sense to minimise the amount of junky self-signed keys you add to your certificate store for localhost.


Please browse the source code index or refer to the guides below.

Getting Started

No description.

Browser Configuration

No description.

Example Server

Require the required libraries:


We welcome contributions to this project.

  1. Fork it.
  2. Create your feature branch (git checkout -b my-new-feature).
  3. Commit your changes (git commit -am 'Add some feature').
  4. Push to the branch (git push origin my-new-feature).
  5. Create new Pull Request.

See Also