3Dmol.js

3Dmol.js is a WebGL-powered JavaScript library for interactive molecular visualization in browsers. Current stable version is 2.5.4, released with improvements to aromatic bond visualization. Releases occur approximately every 2-4 months with incremental feature additions and bug fixes. Key differentiators include support for multiple molecular formats (PDB, SDF, MOL2, XYZ, CIF, MMTF, etc.), parallelized surface computation, rich styling (cartoon, stick, sphere, surface), and both hosted/embeddable viewer modes. It is licensed under BSD and widely cited in bioinformatics. Unlike alternatives (e.g., NGL Viewer, JSmol), 3Dmol.js offers seamless integration with JavaScript apps and a simpler API for quick molecular rendering.