diff --git a/non-free.md b/non-free.md
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@@ -51,6 +51,9 @@
 
 - [Elastix](http://www.elastix.org) `⊘ Proprietary` - Unified communications server software based on 3CX.
 
+## Knowledge Management Tools
+
+- [Wiznote](https://www.wiz.cn/docker) `⊘ Proprietary` - Manage your knowledge in documents with folders, markdown, full text search and webpage collection support. ([Demo](https://www.wiz.cn/), [Clients](https://www.wiz.cn/download.html)) `⚠` `English/Chinese`
 
 ## Maps & GPS