SuperNotecard Alternatives for Mac OS X

FreeMind is a robust, open-source, and free mind mapping software written in Java. It's a versatile tool for brainstorming, organizing thoughts, managing projects, and structuring knowledge hierarchically, providing a flexible canvas for visual thinking.

Scrivener is a powerful writing studio designed for authors and serious writers, offering a comprehensive suite of tools for outlining, drafting, organizing, and compiling long-form projects like novels, screenplays, and academic papers. Its flexible structure allows users to break down large documents into manageable sections, facilitating a focused and efficient writing workflow.

Celtx is a comprehensive cloud-based media pre-production software suite designed for writers and producers across various media, including film, TV, stage, games, and comics. It offers integrated tools for scriptwriting, scheduling, budgeting, storyboarding, and collaboration, streamlining the pre-production process from initial concept to final production.

Manuskript is a free and open-source writing software designed specifically for authors. It provides a structured environment to plan, outline, and write novels and other complex documents, featuring tools for character tracking, plot management, and a distraction-free interface.

Hemingway Editor is a powerful desktop application designed to improve your writing by highlighting common errors and suggesting corrections. It focuses on readability, clarity, and conciseness, helping you write bold and clear prose.

Writer's Café is a comprehensive suite designed for fiction writers, offering tools to plan, write, and organize novels and screenplays from conception to completion, catering to both beginners and seasoned authors.

Scapple is a versatile mind-mapping and note-taking tool designed for freeform idea organization. It allows users to quickly jot down thoughts and connect them in an intuitive, non-linear fashion, making it ideal for brainstorming and knowledge management.