[shekhargulati]

I also started building similar tools in early 2025 and have built around 80 of them so far: https://tools.o14.ai/. Recently, I built a data viewer app (https://tools.o14.ai/excel-qa-review.html) where I can upload an Excel or CSV file containing chat queries and answers for quick manual review.

Reviewing data in Excel is painful, especially when answers are in HTML or Markdown, because you don’t get proper rendering. Building small, custom tools that reduce the friction of reviewing data makes life much easier and more pleasant. These days, I use Claude Code for Web to build most of these apps, and they are deployed on Vercel.