When comparing SlickEdit vs CodeLite, the Slant community recommends CodeLite for most people. In the question“What are the best IDEs for C++ on UNIX-like systems?” CodeLite is ranked 2nd while SlickEdit is ranked 19th. The most important reason people chose CodeLite is:
CodeLite is [actively developed](http://downloads.codelite.org/) with activity almost daily on [Github](https://github.com/eranif/codelite/pulse).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Extensive support for programming languages
SlickEdit supports over 50 programming languages on nine platforms.
Pro Built-in beautifier
The beautifier formats code as you type to help improve readability and consistency.
Pro Compiler tools
Pro Scriptable
Write custom macro commands, functions, dialogs and tool windows.
Pro Over 13 emulations
Choose from fifteen keyboard emulations, containing the key bindings and behaviors necessary to emulate other editors (e.g., CUA, Vim, GNU Emacs, etc.)
Pro Extensive configuration options
Pro Easy access to Visual Studio workspace
SlickEdit opens Visual Studio workspace with no conversions needed.
Pro Symbol analysis support
There are powerful symbol analysis features in SlickEdit, including context tagging and references.
Pro Integrated debuggers for multiple languages
Integrated debuggers for GNU C++, Java, Python, Perl, Ruby, and PHP.
Pro Multi-Platform
Windows, Linux, Mac OS X, AIX, HP-UX, Solaris SPARC, Solaris x86
Pro Portable mode
Possibility to set up a portable installation, to run on a USB drive for example.
Pro Easy access to XCode projects
SlickEdit opens XCode projects with no conversions needed.
Pro Third party tool integration
Pro Popular version control system
Pro Rapid development cycle
CodeLite is actively developed with activity almost daily on Github.
Pro Cross platform
Works on Windows, OS-X and Linux.
Pro File Explorer-like workspace view
The workspace view, unlike other IDEs, is a reflection of the actual directory structure on the file system (with user filters applied).
Pro Easy to find installed compilers
The search for the installed compilers is quick, and it usually yields useful results on the very first atempt.
Pro Open source and free
CodeLite is licensed under GPL with source code available on GitHub.
Pro Modest memory footprint
CodeLite takes up about 50MB when loaded into memory with a workspace opened.
Pro A lot of useful plugins
CppCheck, DiffTool, Git, MemCheck (Valgrind support, Linux-only), SVN, and many other plugins extend the IDE functionality greatly!
Cons
Con No command line option
This is a visual only editor
Con It's kinda slow
If you have a very large project or tag database, it can hang the UI.
Con Bland UI
The UI is fairly boring and has limited customization options.
There is a dark theme available, however it only applies to the editor. The surrounding windows and borders remain light.
You can see a collection of screenshots here.