diff --git a/index.html b/index.html
index e686b13..7e28015 100644
--- a/index.html
+++ b/index.html
@@ -290,6 +290,13 @@
                       <input id="identifier" class="text-input" type="text" name="identifier" value="epd_bitmap"/>
                     </div>
                   </div>
+                  <div class="table-row">
+                    <div class="table-cell"><label for="esp32Format">ESP32 formatting:</label></div>
+                    <div class="table-cell">
+                      <input id="esp32Format" type="checkbox" onchange="updateBoolean('esp32Format')" />
+                      <i class="note">Uses <code>uint8_t</code> instead of <code>unsigned char</code> and drops <code>PROGMEM</code>, which is a no-op on ESP32.</i>
+                    </div>
+                  </div>
                 </div>
               </div>
             </div>
diff --git a/js/script.js b/js/script.js
index bf1249e..c35e454 100644
--- a/js/script.js
+++ b/js/script.js
@@ -22,6 +22,7 @@ const settings = {
   outputComments: true,
   invertColors: false,
   rotation: 0,
+  esp32Format: false,
 };
 
 function bitswap(b) {
@@ -432,6 +433,13 @@ function hexToBinary(s) {
   return { valid: true, result: ret };
 }
 
+// The plain byte type, independent of drawMode (used by output formats,
+// like adafruit_gfx, that are always byte-packed regardless of the current
+// conversion function).
+function getByteType() {
+  return settings.esp32Format ? 'uint8_t' : 'unsigned char';
+}
+
 // get the type (in arduino code) of the output image
 // this is a bit of a hack, it's better to make this a property of the conversion function (should probably turn it into objects)
 function getImageType() {
@@ -440,7 +448,14 @@ function getImageType() {
   } if (settings.conversionFunction === ConversionFunctions.horizontal888) {
     return 'unsigned long';
   }
-  return 'unsigned char';
+  return getByteType();
+}
+
+// PROGMEM is an AVR-ism: it's a no-op on ESP32 (flash is memory-mapped
+// there), so the ESP32 output toggle drops it instead of emitting a keyword
+// that does nothing.
+function progmemKeyword() {
+  return settings.esp32Format ? '' : ' PROGMEM';
 }
 
 // Use the horizontally oriented list to draw the image
@@ -870,7 +885,7 @@ function generateOutputString() {
 
         const varname = getIdentifier() + (image.glyph ? `_${image.glyph.replace(/[^a-zA-Z0-9]/g, '_')}` : '');
         varQuickArray.push(varname);
-        code = `${comment}const ${getImageType()} ${varname} [] PROGMEM = {\n${code}};\n`;
+        code = `${comment}const ${getImageType()} ${varname} []${progmemKeyword()} = {\n${code}};\n`;
         outputString += code;
       });
 
@@ -879,7 +894,8 @@ function generateOutputString() {
         outputString += '\n';
       }
       if (settings.outputComments) {
-        outputString += `// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = ${bytesUsed})\n`;
+        const storageNote = settings.esp32Format ? '' : ' in PROGMEM';
+        outputString += `// Array of all bitmaps for convenience. (Total bytes used to store images${storageNote} = ${bytesUsed})\n`;
       }
       outputString += `const int ${getIdentifier()}_allArray_LEN = ${varQuickArray.length};\n`;
       outputString += `const ${getImageType()}* ${getIdentifier()}_allArray[${varQuickArray.length}] = {\n\t${varQuickArray.join(',\n\t')}\n};\n`;
@@ -899,7 +915,7 @@ function generateOutputString() {
 
       outputString = `const ${getImageType()} ${
         getIdentifier()
-      } [] PROGMEM = {`
+      } []${progmemKeyword()} = {`
             + `\n${outputString}\n};`;
       break;
     }
@@ -918,14 +934,14 @@ function generateOutputString() {
       });
 
       outputString = outputString.replace(/,\s*$/, '');
-      outputString = `const unsigned char ${
+      outputString = `const ${getByteType()} ${
         getIdentifier()
       }Bitmap`
-            + ' [] PROGMEM = {'
+            + ` []${progmemKeyword()} = {`
             + `\n${outputString}\n};\n\n`
             + `const GFXbitmapGlyph ${
               getIdentifier()
-            }Glyphs [] PROGMEM = {\n`;
+            }Glyphs []${progmemKeyword()} = {\n`;
 
       let firstAschiiChar = document.getElementById('first-ascii-char').value;
       const xAdvance = parseInt(document.getElementById('x-advance').value);
@@ -955,7 +971,7 @@ function generateOutputString() {
       // GFXbitmapFont
       outputString += `\nconst GFXbitmapFont ${
         getIdentifier()
-      }Font PROGMEM = {\n`
+      }Font${progmemKeyword()} = {\n`
             + `\t(uint8_t *)${
               getIdentifier()}Bitmap,\n`
             + `\t(GFXbitmapGlyph *)${
diff --git a/tests/golden/output_adafruit_gfx_esp32.txt b/tests/golden/output_adafruit_gfx_esp32.txt
new file mode 100644
index 0000000..dc7d45a
--- /dev/null
+++ b/tests/golden/output_adafruit_gfx_esp32.txt
@@ -0,0 +1,19 @@
+const uint8_t epd_bitmapBitmap [] = {
+	// 'test_pattern', 32x24px
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x0f, 0x0f, 0x7f, 0xff, 0x0f, 0x0f, 0xbf, 0xff, 0x0f, 0x0f, 0xdf, 0xff, 0x0f, 0x0f, 0xef, 0xff, 
+	0x0f, 0x0f, 0xf7, 0xff, 0x0f, 0x0f, 0xfb, 0xff, 0x0f, 0x0f, 0xfd, 0xff, 0x0f, 0x0f, 0xfe, 0xff, 
+	0x0f, 0x0f, 0xff, 0x7f, 0x0f, 0x0f, 0xff, 0xbf, 0x0f, 0x0f, 0xff, 0xdf, 0x0f, 0x0f, 0xff, 0xee
+};
+
+const GFXbitmapGlyph epd_bitmapGlyphs [] = {
+	{ 0, 32, 24, 0, '0' }// 'test_pattern'
+};
+
+const GFXbitmapFont epd_bitmapFont = {
+	(uint8_t *)epd_bitmapBitmap,
+	(GFXbitmapGlyph *)epd_bitmapGlyphs,
+	1
+};
diff --git a/tests/golden/output_arduino_esp32.txt b/tests/golden/output_arduino_esp32.txt
new file mode 100644
index 0000000..450b6d2
--- /dev/null
+++ b/tests/golden/output_arduino_esp32.txt
@@ -0,0 +1,15 @@
+// 'test_pattern', 32x24px
+const uint8_t epd_bitmap_test_pattern [] = {
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x0f, 0x0f, 0x7f, 0xff, 0x0f, 0x0f, 0xbf, 0xff, 0x0f, 0x0f, 0xdf, 0xff, 0x0f, 0x0f, 0xef, 0xff, 
+	0x0f, 0x0f, 0xf7, 0xff, 0x0f, 0x0f, 0xfb, 0xff, 0x0f, 0x0f, 0xfd, 0xff, 0x0f, 0x0f, 0xfe, 0xff, 
+	0x0f, 0x0f, 0xff, 0x7f, 0x0f, 0x0f, 0xff, 0xbf, 0x0f, 0x0f, 0xff, 0xdf, 0x0f, 0x0f, 0xff, 0xee
+};
+
+// Array of all bitmaps for convenience. (Total bytes used to store images = 112)
+const int epd_bitmap_allArray_LEN = 1;
+const uint8_t* epd_bitmap_allArray[1] = {
+	epd_bitmap_test_pattern
+};
diff --git a/tests/golden/output_arduino_esp32_565.txt b/tests/golden/output_arduino_esp32_565.txt
new file mode 100644
index 0000000..e41ec4f
--- /dev/null
+++ b/tests/golden/output_arduino_esp32_565.txt
@@ -0,0 +1,57 @@
+// 'test_pattern', 32x24px
+const uint16_t epd_bitmap_test_pattern [] = {
+	0xf800, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 
+	0x0000, 0x1082, 0x2104, 0x3186, 0x4228, 0x52aa, 0x632c, 0x73ae, 0x8c51, 0x9cd3, 0xad55, 0xbdd7, 0xce79, 0xdefb, 0xef7d, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xf800, 0xf800, 0xf800, 0xf800, 0x07e0, 0x07e0, 0x07e0, 0x07e0, 0x001f, 0x001f, 0x001f, 0x001f, 0xffff, 0xffff, 0xffff, 0xffff, 
+	0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0x001f
+};
+
+// Array of all bitmaps for convenience. (Total bytes used to store images = 784)
+const int epd_bitmap_allArray_LEN = 1;
+const uint16_t* epd_bitmap_allArray[1] = {
+	epd_bitmap_test_pattern
+};
diff --git a/tests/golden/output_arduino_single_esp32.txt b/tests/golden/output_arduino_single_esp32.txt
new file mode 100644
index 0000000..400c530
--- /dev/null
+++ b/tests/golden/output_arduino_single_esp32.txt
@@ -0,0 +1,9 @@
+const uint8_t epd_bitmap [] = {
+	// 'test_pattern', 32x24px
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x33, 0x33, 0x00, 0xff, 0x33, 0x33, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 0xcc, 0xcc, 0x00, 0xff, 
+	0x0f, 0x0f, 0x7f, 0xff, 0x0f, 0x0f, 0xbf, 0xff, 0x0f, 0x0f, 0xdf, 0xff, 0x0f, 0x0f, 0xef, 0xff, 
+	0x0f, 0x0f, 0xf7, 0xff, 0x0f, 0x0f, 0xfb, 0xff, 0x0f, 0x0f, 0xfd, 0xff, 0x0f, 0x0f, 0xfe, 0xff, 
+	0x0f, 0x0f, 0xff, 0x7f, 0x0f, 0x0f, 0xff, 0xbf, 0x0f, 0x0f, 0xff, 0xdf, 0x0f, 0x0f, 0xff, 0xee
+};
\ No newline at end of file
diff --git a/tests/test_conversions.py b/tests/test_conversions.py
index 59d856d..2a4cffe 100644
--- a/tests/test_conversions.py
+++ b/tests/test_conversions.py
@@ -45,6 +45,7 @@ BASE_SETTINGS = {
     "bitswap": False,
     "prefix": "0x",
     "separator": ", ",
+    "esp32Format": False,
 }
 
 OUTPUT_FORMAT_IDS = {
@@ -64,6 +65,18 @@ SCENARIOS = [
     ("output_arduino", {"outputFormat": "arduino"}, None),
     ("output_arduino_single", {"outputFormat": "arduino_single"}, None),
     ("output_adafruit_gfx", {"outputFormat": "adafruit_gfx"}, None),
+    ("output_arduino_esp32", {"outputFormat": "arduino", "esp32Format": True}, None),
+    (
+        "output_arduino_single_esp32",
+        {"outputFormat": "arduino_single", "esp32Format": True},
+        None,
+    ),
+    ("output_adafruit_gfx_esp32", {"outputFormat": "adafruit_gfx", "esp32Format": True}, None),
+    (
+        "output_arduino_esp32_565",
+        {"outputFormat": "arduino", "drawMode": "horizontal565", "esp32Format": True},
+        None,
+    ),
     ("invert_colors", {"invertColors": True}, None),
     ("flip_horizontal", {"flipHorizontally": True}, None),
     ("flip_vertical", {"flipVertically": True}, None),
@@ -194,6 +207,10 @@ def apply_settings(page, settings):
     set_checkbox(page, "#bitswap", settings["bitswap"])
     page.fill("#prefix", settings["prefix"])
     page.fill("#separator", settings["separator"])
+    # esp32Format checkbox only exists in the DOM (visible) for non-plain
+    # output formats; plain output has no type/PROGMEM declarations to affect.
+    if settings["outputFormat"] != "plain":
+        set_checkbox(page, "#esp32Format", settings["esp32Format"])
 
 
 def set_checkbox(page, selector, checked):