JME Molecular Editor is a Java program which allows to draw, edit, and display molecules and reactions in a stand-alone mode or as an applet directly within an HTML page. The Editor can generate SMILES of created structure, so it can be used as a front-end to molecular and reaction databases or property calculation services. Editor can generate SMILES or MDL mol file of created structures.

The applet has been developed by Peter Ertl as a part of web-based cheminformatics and molecular modelling system at Novartis. Due to many requests, the applet has been released to the public and become standard for molecular structure input on the web with more than 1500 installations worldwide.