Cirkit Designer allows you to share your circuit project with others by generating a URL link to a webpage documenting your project.
For example: https://www.cirkithub.com/cirkit-project-view/27
Create a circuit in Cirkit Designer and then click Share
Enter a name and description for your project and click Publish Project
Once publishing has completed, you can view your project and share with others via the generated link.
The link points to a webpage that includes a png rendering of your circuit, as well as the project name and description. The .ckt project file can be downloaded from this page as well.
Note that this webpage contains a copy of your project at the time that it was shared. Future changes to your project are not reflected on this webpage.
In the project manager you can see all of the projects you've shared. You can also delete a project link, meaning it will no longer be accessible.