SubEthaEdit vs. UltraEdit

SubEthaEdit is a collaborative text editor for macOS, renowned for its real-time, multi-user editing capabilities. It enables multiple users to simultaneously edit a document over a network, making it ideal for pair programming, team note-taking, and collaborative writing. Since its inception in 2003, SubEthaEdit has been recognized with awards such as the Apple Design Award for Best Student Product and the O'Reilly Mac OS X Innovators Award. In 2018, it transitioned to a free and open-source model, allowing users to access its full capabilities without cost.

UltraEdit is a text and code editor built for work that general-purpose editors often struggle with: large files, complex data manipulation, and security-sensitive workflows. It has been in the market for more than 30 years, is used by over 4 million users worldwide, and is trusted by enterprise customers across the Fortune 500. Individual users choose UltraEdit when everyday editors start to hit their limits. Common use cases include working with very large files, running advanced search and replace, using column and block editing, and handling more complex text and data manipulation.