diff --git a/src/htmlminifier.js b/src/htmlminifier.js
index d7efa991..8cdcd1ab 100644
--- a/src/htmlminifier.js
+++ b/src/htmlminifier.js
@@ -385,8 +385,22 @@ function cleanConditionalComment(comment, options) {
   }) : comment;
 }
 
+var JSON_SCRIPT_TYPES = [
+  'application/json',
+  'application/ld+json',
+  'application/manifest+json',
+  'application/vnd.geo+json',
+  'importmap',
+  'speculationrules',
+];
+
 function processScript(text, options, currentAttrs) {
   for (var i = 0, len = currentAttrs.length; i < len; i++) {
+    if (currentAttrs[i].name.toLowerCase() === 'type' &&
+        JSON_SCRIPT_TYPES.indexOf(currentAttrs[i].value) > -1) {
+      return minifyJson(text, options);
+    }
+
     if (currentAttrs[i].name.toLowerCase() === 'type' &&
         options.processScripts.indexOf(currentAttrs[i].value) > -1) {
       return minify(text, options);
@@ -395,6 +409,16 @@ function processScript(text, options, currentAttrs) {
   return text;
 }
 
+function minifyJson(text, options) {
+  try {
+    return JSON.stringify(JSON.parse(text));
+  }
+  catch (err) {
+    options.log(err);
+    return text;
+  }
+}
+
 // Tag omission rules from https://html.spec.whatwg.org/multipage/syntax.html#optional-tags
 // with the following deviations:
 // - retain <body> if followed by <noscript>
diff --git a/tests/minifier.js b/tests/minifier.js
index ff848d8e..18a0cc53 100644
--- a/tests/minifier.js
+++ b/tests/minifier.js
@@ -2822,6 +2822,33 @@ QUnit.test('processScripts', function(assert) {
   }), output);
 });
 
+QUnit.test('processScripts application/ld+json', function(assert) {
+  var input = '<script type="application/ld+json">{"foo":  "bar"}\n\n</script>';
+  var output = '<script type="application/ld+json">{"foo":"bar"}</script>';
+  assert.equal(minify(input, {
+    collapseWhitespace: true,
+    processScripts: ['application/ld+json']
+  }), output);
+});
+
+QUnit.test('processScripts application/ld+json (invalid/malformed)', function(assert) {
+  var input = '<script type="application/ld+json">{"foo:  "bar"}\n\n</script>';
+  var output = '<script type="application/ld+json">{"foo:  "bar"}</script>';
+  assert.equal(minify(input, {
+    collapseWhitespace: true,
+    processScripts: ['application/ld+json']
+  }), output);
+});
+
+QUnit.test('processScripts importmap', function(assert) {
+  var input = '<script type="importmap">\n{\n  "imports": {\n    "lodash": "/js/lodash.js",\n    "vue": "https://cdn.jsdelivr.net/npm/vue@3/dist/vue.esm-browser.js"\n  }\n}\n</script>';
+  var output = '<script type="importmap">{"imports":{"lodash":"/js/lodash.js","vue":"https://cdn.jsdelivr.net/npm/vue@3/dist/vue.esm-browser.js"}}</script>';
+  assert.equal(minify(input, {
+    collapseWhitespace: true,
+    processScripts: ['importmap']
+  }), output);
+});
+
 QUnit.test('ignore', function(assert) {
   var input, output;
 
