Emacs
At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Content-aware editing modes, including syntax coloring, for many file types. Complete built-in documentation, including a tutorial for new users. Full Unicode support for nearly all human scripts. Highly customizable, using Emacs Lisp code or a graphical interface. A wide range of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, IRC client, and more. A packaging system for downloading and installing extensions. Built-in support for arbitrary-size integers. Text shaping with HarfBuzz. Native support for JSON parsing. Better support for Cairo drawing. Portable dumping used instead of unexec. Support for XDG conventions for init files. Additional early-init initialization file. Built-in support for tab bar and tab-line. Support for resizing and rotating of images without ImageMagick.
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UltraEdit
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 100, 500, and 1000.
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.
Organizations choose UltraEdit when they need a more secure and supportable editor behind sensitive workflows. That includes teams in banking, insurance, healthcare, government, and other regulated or risk-sensitive environments where unsupported tools can create too much uncertainty.
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CodeRunner
A lightweight, multi-language programming text editor and IDE for macOS. CodeRunner was designed to support all of the most widely used programming languages and run them instantly. The app is configured to run code in 25 languages out-of-the-box, and additional languages can be configured to run by simply entering their terminal command. With over 200 syntax modes, lots of advanced editing features and thoughtful details, CodeRunner will quickly become your go-to editor for any and all kinds of text files. CodeRunner's code completion is the best you'll find in any IDE. Intelligent matching of typed text enables completions beyond single words. Quickly find the right completion among thousands with the extra-fuzzy search algorithm, helpful documentation snippets, and smart ranking of results. Don't clutter your code with print-statements for debugging. Instead, use CodeRunner's built-in debugging features to set breakpoints and step through your code.
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ConTEXT Editor
ConTEXT is small, fast and powerful text editor for software developers. Unlimited open files, unlimited editing file size length, powerful syntax highlighting for C/C++, Delphi/Pascal, 80x86 assembler, Java, Java Script, Visual Basic, Perl/CGI, HTML, SQL, Python, PHP, Tcl/Tk, user definable syntax highlighter, project workspaces, compiler integration, multi-language support and many more features.
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