Online Development Tools

 This post is a collection of useful tools for the programmer. The list will be updated as necessary:

https://gist.github.com/discover - Gist is a way to share codes and snippets with others. Every Gists are individual git repository and this is forkable and usable.

https://ideone.com/ - No need for any tools or installing compiler and editors. Ideone is capable to compile over 60 programming languages.

https://sqldbm.com/Home/ -  go to the website and start building your database. Supported database types

SQL server

MySQL

PostgreSQL

Another main facility here is work with the term in a collaboration. Developers can work remotely on a single project through this platform.

https://www.figma.com/ - Figma is a prototyping tool. Just go to the web and start building your design and save online.

https://coggle.it/ - This is a mind mapping application also applicable for structured documents like document trees.