diff --git a/_posts/plotly_js/fundamentals/config-options/2020-01-24-remove-modebarButtons.html b/_posts/plotly_js/fundamentals/config-options/2020-01-24-remove-modebarButtons.html
index 45491bac1..2a241da19 100644
--- a/_posts/plotly_js/fundamentals/config-options/2020-01-24-remove-modebarButtons.html
+++ b/_posts/plotly_js/fundamentals/config-options/2020-01-24-remove-modebarButtons.html
@@ -15,7 +15,7 @@
          <li> -'Map', `zoomInMap`, `zoomOutMap`, `resetViewMap` </li>
          <li> -'Sankey', `resetSankeyGroup` </li>
          <li> -'Shape drawing', `drawline`, `drawopenpath`, `drawclosedpath`, `drawcircle`, `drawrect`, `eraseshape` </li>
-         <li> -'Other', `hoverClosestPie`, `toggleHover`, `resetViews`, `toImage`, `sendChartToCloud`, `toggleSpikelines` </li>
+         <li> -'Other', `hoverClosestPie`, `toggleHover`, `resetViews`, `toImage`, `downloadJson`, `sendChartToCloud`, `toggleSpikelines` </li>
      </ul>
 ---
 var data = [{
diff --git a/_posts/plotly_js/fundamentals/config-options/2026-09-19-config-opt-downloadJson.html b/_posts/plotly_js/fundamentals/config-options/2026-09-19-config-opt-downloadJson.html
new file mode 100644
index 000000000..4ba5687d6
--- /dev/null
+++ b/_posts/plotly_js/fundamentals/config-options/2026-09-19-config-opt-downloadJson.html
@@ -0,0 +1,27 @@
+---
+name: Download Plot as JSON
+language: plotly_js
+suite: configuration
+order: 3.2
+sitemap: false
+arrangement: horizontal
+markdown_content: |
+    The `downloadJson` modebar button downloads the current figure as JSON using Plotly's `full-json` export. It is opt-in: add it with `modeBarButtonsToAdd: ['downloadJson']` (or via `layout.modebar.add`).
+---
+var data = [{
+    x: [1, 2, 3, 4],
+    y: [10, 15, 13, 17],
+    type: 'scatter'
+}];
+
+var layout = {
+    title: {
+        text: 'Download Plot as JSON'
+    }
+};
+
+var config = {
+    modeBarButtonsToAdd: ['downloadJson']
+};
+
+Plotly.newPlot('myDiv', data, layout, config);