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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JSONedit
JSONedit is a lightweight, portable JSON editor that offers text, tree, and list views for efficient data visualization and manipulation. It is a standalone executable of approximately 2 MB, requiring no installation and storing settings in a .ini file within its directory. Key features include syntax highlighting, tree reuse for maintaining node expansion states between sessions, drag-and-drop functionality for node movement, and tools for array manipulation such as cloning and CSV import. Users can reformat JSON data between compact and indented styles, search within text and tree views, and validate JSON syntax. JSONedit is freeware, allowing free use and distribution.
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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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Online JSON Editor
The Online JSON Editor is a tool designed to facilitate the viewing, editing, formatting, validating, and beautifying of JSON data. It offers a user-friendly interface that allows for quick modifications of complex JSON code and supports multiple methods for code input, including direct typing, copy-pasting, file uploads, and URL retrieval. Online JSON Editor provides various code views such as tree, form, code, and text, enabling users to interact with JSON data in their preferred format. Additional features include real-time formatting, minification without altering code integrity, undo and redo functionalities, error highlighting with descriptive messages, and compatibility across multiple devices.
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