When comparing Coggle vs Federated Wiki, the Slant community recommends Coggle for most people. In the question“What is the best cross-platform note-taking app?” Coggle is ranked 56th while Federated Wiki is ranked 60th. The most important reason people chose Coggle is:
Markdown is a plain text formatting syntax designed so that it can optionally be converted to HTML using a tool by the same name.
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Pros
Pro Supports Markdown (their own variant)
Markdown is a plain text formatting syntax designed so that it can optionally be converted to HTML using a tool by the same name.
Pro Collaborative
Coggle allows inviting friends and colleagues to work collaboratively on notes and diagrams in real-time.
Pro Pretty diagrams
No effort to create beautiful diagrams.
Pro Supports LaTeX
LaTeX is a document preparation system and document markup language. It is the de facto standard for the communication and publication of scientific documents.
Pro Allows easy color-coding of paths
Pro Versioning support
Enter history mode to view all changes to a diagram over time, and make a copy from that point.
Pro Optional Chrome store App
Pro Free
Pro Lots of export options
Exports to PDF, image, plaintext and .mm files.

Pro Stories
Arrange your personal view of a wikis content by opening local and remote pages next to each other. Shift-clicking a link will open it next to already open ones. The story will then be visible in the URL.

Pro Free and Open Source Software

Pro Versioning
Your page is the Journal of the page.

Pro Drag and drop refactoring
Recompose your contents all the time.

Pro Federation
Write locally, fork to your public site. Fork from others.
Cons
Con Tree relations only; no non-parent links
Coggle's model allows a node to have multiple children, but only one parent, and no other connections of any sort.
Con Unconventional note taking style
Coggle is a mind mapping application, not a traditional text based note storage platform.
Con No drag'n'drop file upload
