diff --git a/editions/ja-JP/tiddlers/_tw_shared/sites/tiddlywiki.com.dev.tid b/editions/ja-JP/tiddlers/_tw_shared/sites/tiddlywiki.com.dev.tid
new file mode 100644
index 000000000..962ee45a7
--- /dev/null
+++ b/editions/ja-JP/tiddlers/_tw_shared/sites/tiddlywiki.com.dev.tid
@@ -0,0 +1,7 @@
+title: $:/_tw_shared/sites/tiddlywiki.com.dev
+ja-title: $:/_tw_shared/sites/tiddlywiki.com.dev
+tags: $:/tags/TiddlyWikiSites TiddlyWikiSitesMenu
+caption: tiddlywiki.com/dev
+description: 開発者サイト
+url: https://tiddlywiki.com/dev/
+icon: $:/_tw_shared/favicons/tiddlywiki.com.dev