CudaText
CudaText is a cross-platform text editor, written in Object Pascal. It is open source project and can be used free of charge, even for business. It starts quite fast on Linux on CPU Intel Core i3 3GHz. It is extensible by Python add-ons, plugins, linters, code tree parsers, external tools. Syntax parser is feature-rich, from EControl engine. Syntax highlight for lot of languages (270+ lexers). Code tree structure of functions/classes/etc, if lexer allows it. Code folding, multi-carets and multi-selections. Find/Replace with regular expressions. Configs in JSON format. Including lexer-specific configs. Tabbed UI, with a split view to primary/secondary, and a split window to 2/3/4/6 groups of tabs. Command palette, with fuzzy matching, minimap, and micromap. Shows unprinted whitespace and offers support for many encodings. Customizable hotkeys. Binary/Hex viewer for files of unlimited size (can show 10 Gb logs).
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Caret
Based on the amazing Ace editing component, Caret brings professional-strength text editing to Chrome OS. With Caret, you no longer need to install a second OS to get what other platforms take for granted: a serious editor for local files, aimed at working programmers. Caret offers syntax highlighting for a wide variety of languages, and all of the standard themes that come with Ace, including emulations of coloring from other editors like Eclipse, XCode, and the Chrome Dev Tools. Once you've gotten used to making many changes with just a keystroke or two, it's hard to go back to just one cursor. Caret offers multiple cursors and selections, and support for Sublime keybindings like Ctrl-D (select next match). Why bother learning keyboard shortcuts? With the command palette (Ctrl-Shift-P), you can just start typing what you want, Caret will fuzzy-search the menu configuration, find the command you want, and execute it for you. You never need to touch the mouse again.
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UltraEdit
For almost 3 decades, UltraEdit has been the go-to text editor for 2+ million users and many Fortune 100/500/1000 enterprise customers. Renowned for its power and performance in handling and processing huge files and data, UltraEdit is also a highly configurable and fully themed code editor with support for nearly any source language or syntax.
Often called the "Swiss army knife" of text editors, UltraEdit is a powerful tool for users in a wide range of responsibilities and industries. From programming and project management to large file manipulation, from data sorting and column/block editing to remote (FTP/SFTP) file operations, from advanced file searching and text data reformatting, there's almost no problem that UltraEdit can't solve in the world of text editing.
UltraEdit is available for Windows, Mac, and Linux and is supported by a professional development team and customer service staff located in the USA.
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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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