Coggle

Cloud, embeddable mind-mapping software - https://coggle.it/

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Note: Coggle does not automatically update image-only embeds, but it does update the embed of the entire site. Compare the 2 results above - which are the same file. The Embed of image-only creates a static image at the point when the embed code was generated, so updates in the wiki for the image-only must be updated manually if changes are made.