
FreeChemDraw — Free Online Chemical Structure Editor & Auto Structure Fetch
FreeChemDraw is a free online chemical structure editor based on open-source Ketcher and OSRA; integrates with ChemTradeHub to fetch structures by CAS, formula or name.

FreeChemDraw is a free online chemical structure editor based on open-source Ketcher and OSRA; integrates with ChemTradeHub to fetch structures by CAS, formula or name.

This article explains how to dynamically exclude or include files in a .NET project during publishing based on client parameters, enabling customized releases for multiple client websites.

MSites is an intelligent website building system developed by MetaLink Inc., designed to help companies quickly create modern, high-quality corporate websites at low cost. With modular design, multilingual content management, built-in SEO, and responsive dark mode, MSites enables efficient global digital expansion for businesses.
![[Diary] Reflections on AI's Impact on Me Recently](/upload/news/d0eb0f6c3f6d42838c018a23e0e6886f.webp)
In December 2024, I developed a simple Python+SQLite blog system using Windsurf, later adding AI-generated summaries and webp images. It felt addictive. Then I created a Tic-Tac-Toe game and a parent-child online game site, and finally purchased domains and launched a free chemistry tools website. After reflection, I decided to give up the illusion that AI can fully replace development—it can assist but not substitute. In January, I started using AI with .NET + MongoDB to rebuild the development framework and launched a free chemical directory site.