It has been running for well over a year now, and works well: this gadget to visualize 2D chemical structural information for SMILES, CXSMILES, and SMARTS. It uses the open source CDK Depict, and the instance running on Toolforge.

See https://www.wikidata.org/wiki/User:Egon_Willighagen/cdkdepict_gadget.js

A Wikidata item then looks like this (once for the canonical SMILES (without stereochemistry) and once for the isomeric SMILES (with stereo)):