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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nano
GNU nano was designed to be a free replacement for the Pico text editor, part of the Pine email suite from The University of Washington. It aimed to "emulate Pico as closely as is reasonable and then include extra functionality". The Debian GNU/Linux distribution, known for its strict standards in distributing truly "free" software (i.e. software with no restrictions on redistribution), would not include a binary package for Pine or Pico. Many people had a serious dilemma: they loved these programs, but the versions available at the time were not truly free software in the GNU sense of the word. GNU nano is a small and friendly text editor. Besides basic text editing, nano offers features like undo/redo, syntax coloring, interactive search-and-replace, auto-indentation, line numbers, word completion, file locking, backup files, and internationalization support. Starting with version 4.0, nano no longer hard-wraps an overlong line by default.
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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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QuickEdit
QuickEdit is fast, stable and full featured text editor for Android. It is optimized for both phone and tablet! Enhanced notepad application with numerous improvements. Code editor and syntax highlight for 40+ languages. High performance and real time feedback on large text files (more than 10,000 lines). Undo and redo modifications without limit. Display, increase and decrease line indents. Smooth scroll in both vertical and horizontal direction. Directly go to a specified line number. Automatically detect character encoding. Preview html and markdown files. Be able to edit system files for rooted devices. Open file from recent opened and added files. Support both light and dark theme. Optimized for both phone and tablet.
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