Project IDX has been discontinued. Similar sites and apps include Notepad++, which is free and open source. Other options are Visual Studio Code, Sublime Text, VSCodium and Vim. You're spoiled for choice with Code Editors like Project IDX: we list more than 50 alternatives for Mac, Windows, Linux, Android and Chrome OS.
Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.
TextMate brings Apple's approach to operating systems into the world of text editors. By bridging UNIX underpinnings and GUI, TextMate cherry-picks the best of both worlds to the benefit of expert scripters and novice users alike.
United Kingdom
Trae is an adaptive AI IDE that transforms how you work, collaborating with you to run faster.
Singapore
CudaText is a cross-platform text editor, written in Lazarus / Free Pascal.
Russia
CodeEdit is a code editor built by the community, for the community, written entirely and unapologetically for macOS. Features include syntax highlighting, code completion, project find and replace, snippets, terminal, task running, debugging, git integration, code review...
Germany
EU
UltraEdit is a commercially maintained editor built for critical work where performance, reliability, and security matter most.
United States
China
A powerful IDE for data science, Zasper excels with massive concurrency support, enabling numerous simultaneous connections, minimal memory usage, and speedy performance. Suited for REPL-style data apps like Jupyter notebooks, fully supported on Mac with limited Linux support.
India
PSPad is a freeware programmers editor in 8 languages for Microsoft Windows operating systems. Some features are highlighted syntax, ftp, projects and so on. Code explorer for Pascal, C/C++, INI, HTML, XML, PHP and more in development, internal web browser with APACHE support.
CzechiaEU
SciTE is a SCIntilla based Text Editor. Originally built to demonstrate Scintilla, it has grown to be a generally useful editor with facilities for building and running programs. It is best used for jobs with simple configurations - I use it for building test and demonstration...
Australia
Squircle CE is a fast, lightweight code editor and file manager with support for over 30 programming languages, remote file access via SFTP/FTP(S) and Git VCS integration. Whether you're a student, hobbyist, or professional developer, Squircle CE lets you write, manage, and...
Russia
With Theia you can develop one IDE and run it in browsers or native desktop application from a single source. Theia is designed in a modular way to allow extenders and adopters customizing and extending every aspect of it.
United States
