For Desktop version : GitHub (Without 3D)
For Code of this app: GitHub
Gets Data From : PubChem
Contact me: Instagram
Type the compound name in the text field and press Search
Eg:"water" [or] "h2o" [or] "H2O"

If you don't know what to search, then press the surprise me button to get random results from a database which contains around "100000000" structues.

Not all compounds have 3D structures generated.

You can try :Compounds, Molecules ,Elements etc...