Alternatives to Opal for all platforms with any license

  • OutlineEdit

    A beautifully crafted outliner for your Mac: It helps you keep your ideas structured and collected. Use OutlineEdit as an empty canvas to sketch information - for...

    Commercial $ $ $ Mac OS X

    No features added Add a feature

    OutlineEdit icon
  • Deep Notes

    Deep Notes is a simple hierarchical note pad. You can use it to outline ideas, make to-do lists, or whatever else might need jotting down in a list, hierarchical or not....

    Free Mac OS X

    No features added Add a feature

    Deep Notes icon

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