How to build the matter modeling model with appropriate tools?
When we perform matter simulation with first-principles calculation, building a reasonable model always be the very first and important step. However, people utilize different tools to build their model on top of their background. I know some tools such as VESTA and Materials Studio from my computational condensed matter physics background.
The purpose that I post this question is to look for the complete list of model building tools from your backgrounds. I hope you can share your tools to build a model and list its common functions. And I hope this question and the expected answer will be beneficial for the whole matter modeling community.
The answer presented as this format is appreciable.