Codeit

CotEditor is exactly made for macOS. It looks and behaves just as macOS applications should. CotEditor launches so quick that you can write your text immediately when you want to. CotEditor is developed as an open-source project that allows anyone to contribute. Colorize more than 50 pre-installed major languages like HTML, PHP, Python, Ruby or Markdown. You can also create your own settings. Split a window into multiple panes to see different parts of your document at the same time. Inspect Unicode character data of each selected character in your document and display them in a popover. There are no complex configuration files that require geek knowledge. You can access all your settings including syntax definitions and themes from a standard preferences window. You don't need to lose your unsaved data anymore. CotEditor backups your documents automatically while editing. Check and list-up the characters in your document that cannot convert into the desired encoding.

CodeLite is a free, open-source, cross-platform Integrated Development Environment (IDE) designed primarily for C, C++, PHP, and JavaScript development. It offers a lightweight and highly customizable environment with support for multiple compilers, including GCC, Clang, and Microsoft Visual C++. CodeLite features an intuitive code editor with syntax highlighting, auto-completion, and code refactoring capabilities. It also includes an integrated debugger with support for GDB, making it easy to set breakpoints, inspect variables, and trace call stacks. Additionally, CodeLite supports Node.js and TypeScript development, making it a versatile choice for both desktop and web-based applications. Its flexibility, cross-platform compatibility (Windows, macOS, and Linux), and integration with popular version control systems like Git and Subversion make it a go-to IDE for developers seeking a lightweight alternative to more resource-intensive environments.