Well, freeing space on server, cleaning up logs are usually admin tasks, but in case of Development servers, Mostly Developers are doing those tasks. Therefore, this particular article i have written from developers prospective.

Case & Solution:  
In case your SharePoint  Server is running out of Storage, Please check with Win Dir tool as shown in the above image. You can download that tool from below link: 
Download URL: https://windirstat.info/download.html

In most of the cases it is due to Logs files created by SharePoint.By inspecting WinDirStat tool, If you find any DATA folder under Program Files >> SQL Server >> … >> is occupying exceptionally high space,List out which DB logs are taking more spaces.
Run the below SQL scripts. Replace the WSS_Content_DB with Actual DB name which occupying higher space. Repeat the process for every single DB which is taking more space.

SQL Script: