Chemistry and Biochemistry: Visual Resources Expand All + Collapse All - Chemical ImagesBioRenderThe Noun ProjectChemical Drawing ProgramsFree (at least for academics)Biovia DrawChemSketch (ACD Labs)Pubchem Drawing WindowFee (prices are for individual student)ChemDoodleComplicatedChemaxon Marvin, etc. Chemaxon offers a large number of products, suites, add ons, etc. and apparently pricing is not shown until you register, login, and initiate the download process. The academic license (free?) seems to be set up more for teachers and researchers rather than students, although apparently an approved teacher license includes their undergraduate classes.Reviews and ListingsThere are several reviews you can look into from the ChemDoodle reviews list. (note source of compilation)Chemical Drawing Programs - The Comparison of Accelrys (Symyx) Draw, ChemBioDraw (ChemDraw), DrawIt, ChemSketch, ChemDoodle and Chemistry 4-D Draw11; web site by Dr Tamas E. Gunda, Hungary ACS DivCHED CCCE : Cheminformatics On Line Chemistry Course Module 4a : Communicating Chemical Structure has a directory of drawing programs: