diff --git a/doc/builders.md b/doc/builders.md
index 485ecd0..113f050 100644
--- a/doc/builders.md
+++ b/doc/builders.md
@@ -24,6 +24,7 @@ JavaScript specific builders:
 Aria Templates specific builders:
 
 * [Create an Aria Templates multi-part file](#create-an-aria-templates-multi-part-file-atmultipart-)
+* [Create an Aria Templates cache update package file](#create-an-aria-templates-cache-update-package-file-atfillcache-)
 
 
 
@@ -139,6 +140,30 @@ where:
 For the full process, please refer to the `Concat` builder.
 
 
+# Create an Aria Templates cache update package file: `ATFillCache`
+
+This builder creates packages which can be used to fill the cache of Aria Templates. It extends the `Concat` builder, so please refer to it as well.
+The packages created with this builder can be loaded with a script tag to make some classes available synchronously.
+
+## Configuration
+
+There is no extra configuration parameter (only the parameters inherited from `Concat`)
+
+## Build process
+
+For each input file, the builder generates a line in the output package with the following format:
+
+```javascript
+aria.core.DownloadMgr.loadFileContent("{path}","{content}");
+```
+
+where:
+
+* `"{path}"` is the "stringified" logical path of the input file, with backslashes replaced by normal slashes
+* `"{content}"` is the "stringified" content of the input file
+
+For the full process, please refer to the `Concat` builder.
+
 
 # Create custom builders
 
diff --git a/lib/builders/ATFillCache.js b/lib/builders/ATFillCache.js
new file mode 100644
index 0000000..3bcfbba
--- /dev/null
+++ b/lib/builders/ATFillCache.js
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2015 Amadeus s.a.s.
+ * 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.
+ */
+
+var Concat = require('./Concat');
+var pathSep = /\\/g;
+
+/**
+ * This builder creates files in a format which allows the script to be inserted with a script tag and fills the Aria
+ * Templates cache.
+ * @param {Object} cfg configuration
+ */
+var ATFillCache = function (cfg) {
+    cfg = cfg || {};
+    Concat.call(this, cfg); // parent constructor
+};
+
+// ATFillCache extends Concat:
+ATFillCache.prototype = new Concat();
+
+/**
+ * Writes the given input file. It overrides the method from Concat to write calls to
+ * aria.core.DownloadMgr.loadFileContent.
+ * @param {Object} outputFile output file
+ * @param {Object} sourceFile source file
+ * @param {Array} out array of strings with the content of the file, which will be concatenated to produce the final
+ * file.
+ */
+ATFillCache.prototype.writeInputFile = function (outputFile, sourceFile, out) {
+    outputFile.packaging.callVisitors('onWriteInputFile', [outputFile, sourceFile]);
+    var content = sourceFile.getTextContent();
+    out.push('aria.core.DownloadMgr.loadFileContent(', JSON.stringify(sourceFile.logicalPath.replace(pathSep, '/')), ',', JSON.stringify(content), ');\n');
+    sourceFile.clearContent(); // clear files once packaged
+};
+
+module.exports = ATFillCache;