Companion · Free
A free Markdown reader. While building conversational AI at Xiaohe, we spent a lot of time reading model-generated Markdown — and wanted a calm, focused reader. So we carved that capability out as Heyue, free for anyone with the same need.
Heyue (菏阅) focuses on reading Markdown well: clean typography, GitHub-flavored Markdown, and KaTeX. It is not part of the Xiaohe Agent paid line — a companion tool we shaped from our own workflow. No account required.