diff --git a/utils/convert.mjs b/utils/convert.mjs
index 9e874259ce..3e0b2bfcb8 100644
--- a/utils/convert.mjs
+++ b/utils/convert.mjs
@@ -9,25 +9,37 @@ const __dirname = path.dirname(__filename);
 
 const data = JSON.parse(fs.readFileSync(path.join(__dirname, '../docs/data.json')));
 
+const isHiddenEntry = entry =>
+  Array.isArray(entry?.tags) &&
+  entry.tags.some(t => ['private', 'internal'].includes(String(t?.title || '').toLowerCase()));
+
 // Generate documentation used in the p5.js reference. This data will get read in
 // the p5.js-website repo: https://github.com/processing/p5.js-website/
 const htmlStrategy = {
-  shouldSkipEntry: (entry) =>
+  shouldSkipEntry: entry =>
     // Skip static methods on p5.Vector for now because the names clash with
     // the non static versions
     entry.scope === 'static' &&
     entry.memberof === 'Vector' &&
     ['add', 'sub', 'mult', 'div', 'copy', 'rem', 'rotate', 'dot', 'cross', 'dist', 'lerp', 'slerp',
-    'mag', 'magSq', 'normalize', 'limit', 'setMag', 'heading', 'angleBetween', 'reflect',
-    'array', 'equals'].includes(entry.name),
-  
-  processDescription: (desc) => descriptionString(desc),
-  
-  processType: (type) => typeObject(type)
+      'mag', 'magSq', 'normalize', 'limit', 'setMag', 'heading', 'angleBetween', 'reflect',
+      'array', 'equals'].includes(entry.name),
+
+  processDescription: desc => descriptionString(desc),
+
+  processType: type => typeObject(type)
 };
 
 const processed = processData(data, htmlStrategy);
 
+for (const item of processed.classitems) {
+  const raw = data.find(
+    e => (e.memberof || '') === (item.class || '') &&
+         (e.name || '') === (item.name || '')
+  );
+  item.hidden = isHiddenEntry(raw);
+}
+
 const converted = {
   project: {}, // Unimplemented, probably not needed
   files: {}, // Unimplemented, probably not needed