Is there a free IDE which is official recommended and multi-platform?

Question

Hi, everyone. Long time no see. 
 I wonder if there is a free IDE which is official recommended. As we know that Keil and IAR are all commerical software. GCC command line tool is poor for debugging because it is not an IDE. 
 As a contrast to nRF SDK, TI offers an IDE called Code Composer Studio (CCS). If developers use CCS and TI LunchPad together, CCS will be free. And new TI BLE STACKs supports CCS IDE. It is especially good for macOS and Linux users and evaluators. 
 So I want to ask will nRF SDK natively support a free multi-platform IDE such as eclipse or Segger Embedded Studio(SES)?

Roger Clark · Accepted Answer

Segger Embedded Studio is not actually free, if you carefully read the license doc it is only free for evaluation / non commercial, but is not size limited 
 Keil has an evaluation version, which is size limited 32k application size, but as most of the API is in the SD not in the application code, most of the examples in the SDK will compile in the evaluation version of Keil - however you can't use it for commercial projects, as the license is for evaluation only 
 Eclipse is the only IDE which is truely free and unlimited, and Nordic have a blog entry about setting it up and using it.
However the build process is not fully integrated in the blog post, as it still uses the external makefile used for command line GCC builds 
 Visual GDB is another possible option, but its Not Free, but is quite low cost (around $100 last time I checked) 
 Or you could simply use your own favourite editor and use the gcc makefile.
You can still use Segger OZone to debug if you have a JLink.

Is there a free IDE which is official recommended and multi-platform?

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