When comparing Atom vs CodeLite, the Slant community recommends CodeLite for most people. In the question“What are the best IDEs for C++ on Linux?” CodeLite is ranked 3rd while Atom is ranked 16th. 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).
Ranked in these QuestionsQuestion Ranking
Pro Extensive list of packages
Atom has a built-in package manager and an extensive list of packages.
Pro Built-in package management
Atom was built from the ground up with the community in mind. Package management is therefore a first class feature.
Atom can run on Mac, Windows, and Linux.
Due to its modular design, almost any aspect of the editor can be changed. Even seemingly core packages, like those taking care of search and replace functionality, can be forked on GitHub, and changed and replaced in the editor.
The documentation for creating new plugins is also great, making it easier for developers to jump in and create plugins for Atom.
Pro Free and open source
Atom is free, open source, and written in C++, LESS, and CoffeeScript.
Pro Beginner friendly
One of the goals of Atom is to be a text editor for both experienced and beginner programmers. You can add keyboard shortcuts, change themes, install plugins, and change core settings by clicking through a GUI, or by manually editing config files the old-fashioned way. It has the added advantage of being built using the same engine that powers Google Chrome, so actions like opening and closing tabs feel familiar, even to new or non-programmers.
Pro Multi-line select and edit
Multiple cursors and column selection allow for versatile ways of editing.
ctrl + d will select the current word and each time the command is repeated, it adds the next occurrence of the word to the selection.
ctrl + click or
middle-mouse click will place another cursor in the place that's clicked. Cursors can then be controlled together. This also allows for selecting vertically.
Pro Embedded Git control
Atom will highlight folders, files, and lines that have any uncommitted edits made. It also integrates really well with GitHub.
Pro Command Palette support
The Command Palette permits fuzzy searching all available functions, settings, snippets, etc.
Pro Allows for instant file switching
By pressing Ctrl or Command + T and using fuzzy search, you can look for a file in your project.
You can theme and customize Atom to your liking.
Pro HiDPI support
Atom has built-in HiDPI support with zero scaling issues.
Pro Modern feel and very customizable and extendable
Pro Command line integration out of the box
Installing Atom adds two command line commands -
apm. The first one runs the application itself while the second is the Atom Package Manager that's used to add and remove various components from the package listing. While these features can be set up with other editors as well, Atom takes care of them out of the box.
Pro Vim plugin turns Atom into a modernized vim
Pro Could also used as an IDE
Atom qualifies to be a good IDE because of the packages like linters, atom browser and hydrogen
Pro Best support for Arduino with Platformio
Arduino is the most important platform for developing embedded systems.
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 A lot of useful plugins
CppCheck, DiffTool, Git, MemCheck (Valgrind support, Linux-only), SVN, and many other plugins extend the IDE functionality greatly!
Pro Cross platform
Works on Windows, OS-X and Linux.
Pro Modest memory footprint
CodeLite takes up about 50MB when loaded into memory with a workspace opened.
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).
Con Very slow startup time
Atom is very slow to startup, which is a big disadvantage if you are accustomed to using it to make quick changes on your files.
Con High memory usage
Atom has a relatively high memory usage, especially when compared to some other text editors not based on Electron. For those who develop on the go, this also tends to mean shorter battery life.
Con Has difficulty with large text files
Tends to crash or hang with large >(10MB) text files, making it less useful as a general text editor.
Con Slows down exponentially with plugins
Extending it needs sacrificing responsiveness
Con Doesn't handle RTL (right-to-left text) well
Text can't be highlighted and manipulated properly, cursor isn't displayed visually according to where it is logically (you have to type to find out), and similar issues.
Con Not suitable for older computers
Atom requires a lot of system resources to run, so it will most probably be painfully slow on an older machine.
Con Not known when a new window will open
It's not really clear why and when a new window is opened when you open a file out of the tree view.
Con No text UI
Con Bloated. Too many packages, too little productivity.
Unable to use package to even convert a C file to PDF.
Con Slow because of Electron
Atom is not a native application. As such performance is subpar and the lag is especially noticeable on larger projects. It also opens a surprising amount of sub-processes and leaks a considerable amount of memory.
Con Crash and data loss
I lost unsaved changes 2 times when the app crashes.
A bugreport about that was closed automatically after some time, nobody cares.
Con Missing additional touches
As Atom is still relatively new, it's missing nice little touches that other text editors have implemented over the years. From simple ease-of-use items like middle-mouse button multi-cursor select, to the ways pasted information from a spreadsheet is interpreted in multi-select situations.
Con Doesn't recognize some keyboards
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.