diff --git a/ts/src/web.ts b/ts/src/web.ts
index bdacece..a8745c8 100644
--- a/ts/src/web.ts
+++ b/ts/src/web.ts
@@ -507,6 +507,16 @@ function _updateThemeBtn() {
 window.addEventListener('DOMContentLoaded', _updateThemeBtn);
 
 // --- Init ---------------------------------------------------------------------
+// Pin all functions referenced from inline HTML onclick/onchange strings so
+// Bun's bundler does not tree-shake them as unreachable dead code.
+Object.assign(window, {
+  loadBin, exportBin,
+  addSection, removeSection, toggleSection, setSectionFlag,
+  addElement, removeElement, selectElement,
+  changeElType, setElField, setElFlag,
+  cycleTheme,
+});
+
 render();
 if (window.MonoDisplay) { initDemos(); }
 else { const iv = setInterval(() => { if (window.MonoDisplay) { clearInterval(iv); initDemos(); } }, 100); }