SkyIDE

SkyIDE is a free IDE with support for C++, Java, Digital Mars D, C#, VB.NET, Pascal, JavaScript, VBScript, PHP, Haskell, and plain text. The application contains a wide range of features, such as macros, compiler profiles, and an environment manager.

It's not wrapped in an installer, so you can just copy the files on the computer or a removable storage unit, and double-click the .exe to launch the tool. No modifications are made to the Windows registry.

The main window has a professional layout and supports syntax highlights. You can create projects with multiple source files, set bookmarks, reload the current file, record and play macros for repetitive tasks, control the file structure with functions and classes, as well as create compiler profiles.

A simple task manager can be filled with basic notes to monitor the evolution of tasks. Meanwhile, the environment manager lets you add new project files and external documents before compiling the project. Data can be exported to HTML format, while a search-and-replace function can be executed with advanced options (e.g. selected text only, regular expression mode, case sensitivity).

When it comes to document formatting, it's possible to indent and outdent text, merge multiple lines into one, insert or delete text from the start or end of each line, trim spaces from left or right, convert text to uppercase or lowercase, add numbers to selected lines, delete empty lines, as well as to perform a search using conditions similar to SQL queries.

It didn't put a strain on the machine's performance in our tests, running on low CPU and RAM. No error dialogs popped up and the tool didn't freeze or crash. Too bad that it hasn't been updated for a long time. Otherwise, SkyIDE comes equipped with practical options for writing and compiling code in various languages.