diff --git a/projects/closure-library/Dockerfile b/projects/closure-library/Dockerfile
new file mode 100644
index 000000000..c68e04e9c
--- /dev/null
+++ b/projects/closure-library/Dockerfile
@@ -0,0 +1,25 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-javascript
+
+COPY build.sh $SRC/
+
+RUN  git clone --depth 1 https://github.com/google/closure-library.git
+
+COPY fuzz.js $SRC/closure-library
+
+WORKDIR $SRC/closure-library
diff --git a/projects/closure-library/build.sh b/projects/closure-library/build.sh
new file mode 100644
index 000000000..7a2b5adde
--- /dev/null
+++ b/projects/closure-library/build.sh
@@ -0,0 +1,23 @@
+#!/bin/bash -eu
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+# Install dependencies.
+npm install
+npm install --save-dev @jazzer.js/core
+
+# Build Fuzzers.
+compile_javascript_fuzzer closure-library fuzz.js -i closure-library --sync
diff --git a/projects/closure-library/fuzz.js b/projects/closure-library/fuzz.js
new file mode 100644
index 000000000..9e7dbcbb7
--- /dev/null
+++ b/projects/closure-library/fuzz.js
@@ -0,0 +1,74 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+const { FuzzedDataProvider } = require('@jazzer.js/core');
+require("google-closure-library");
+const SafeHtml = goog.require('goog.html.SafeHtml');
+const googString = goog.require('goog.string.Const');
+const TrustedResourceUrl = goog.require('goog.html.TrustedResourceUrl');
+const UncheckedResourceUrl = goog.require('goog.html.UncheckedResourceUrl');
+
+module.exports.fuzz = function(data) {
+  const provider = new FuzzedDataProvider(data);
+
+  const html = provider.consumeString(300);
+  const shouldWrap = provider.consumeBoolean();
+  const tagName = shouldWrap ? provider.consumeString(10) : '';
+
+  let safeHtml;
+  try {
+    const method = provider.consumeIntegralInRange(1, 6);
+
+    switch (method) {
+      case 1:
+        safeHtml = SafeHtml.create(tagName, { innerHtml: html });
+        break;
+      case 2:
+        safeHtml = SafeHtml.fromConstant(googString.from(html));
+        break;
+      case 3:
+        safeHtml = SafeHtml.fromTrustedResourceUrl(TrustedResourceUrl.fromConstant(googString.from(html)));
+        break;
+      case 4:
+        safeHtml = SafeHtml.fromUntrustedResourceUrl(UncheckedResourceUrl.fromConstant(googString.from(html)));
+        break;
+      case 5:
+        safeHtml = SafeHtml.unwrap(SafeHtml.create(tagName, { innerHtml: html }));
+        break;
+      case 6:
+        safeHtml = SafeHtml.concat(SafeHtml.create(tagName, { innerHtml: html }), SafeHtml.EMPTY);
+        break;
+    }
+
+    const htmlString = SafeHtml.unwrap(safeHtml);
+    const isEmpty = provider.consumeBoolean();
+    const emptySafeHtml = isEmpty ? SafeHtml.EMPTY : safeHtml;
+    const concatenatedSafeHtml = SafeHtml.concat(safeHtml, emptySafeHtml);
+    const isTrusted = provider.consumeBoolean();
+    const trustedSafeHtml = isTrusted ? SafeHtml.htmlEscape(htmlString) : concatenatedSafeHtml;
+    SafeHtml.unwrap(trustedSafeHtml);
+  } catch (error) {
+    if (!ignoredError(error)) throw error;
+  }
+};
+
+function ignoredError(error) {
+  return !!ignored.find((message) => error.message.indexOf(message) !== -1);
+}
+
+const ignored = [
+  "Cannot read properties of"
+];
diff --git a/projects/closure-library/project.yaml b/projects/closure-library/project.yaml
new file mode 100644
index 000000000..ba4dcc6dc
--- /dev/null
+++ b/projects/closure-library/project.yaml
@@ -0,0 +1,15 @@
+homepage: https://developers.google.com/closure/library/
+language: javascript
+main_repo: https://github.com/google/closure-library
+fuzzing_engines:
+- libfuzzer
+sanitizers:
+- none
+vendor_ccs:
+  - "wagner@code-intelligence.com"
+  - "yakdan@code-intelligence.com"
+  - "glendowne@code-intelligence.com"
+  - "patrice.salathe@code-intelligence.com"
+  - "hlin@code-intelligence.com"
+  - "christopher.krah@code-intelligence.com"
+  - "bug-disclosure@code-intelligence.com"