diff --git a/static/webui/index.html b/static/webui/index.html
index 5d037980..3d690e16 100644
--- a/static/webui/index.html
+++ b/static/webui/index.html
@@ -320,7 +320,8 @@
                             <h5 class="card-header">Account</h5>
                             <div class="card-body">
                                 <p><button class="btn btn-primary" onclick="doUnlockAllFocusSchools();">Unlock All Focus Schools</button></p>
-                                <button class="btn btn-primary" onclick="doHelminthUnlockAll();">Fully Level Up Helminth</button>
+                                <p><button class="btn btn-primary" onclick="doHelminthUnlockAll();">Fully Level Up Helminth</button></p>
+                                <button class="btn btn-primary" onclick="doAddAllMods();">Add All Mods</button>
                             </div>
                         </div>
                     </div>
diff --git a/static/webui/script.js b/static/webui/script.js
index 68dd9db1..f9e6e851 100644
--- a/static/webui/script.js
+++ b/static/webui/script.js
@@ -1077,6 +1077,38 @@ function doHelminthUnlockAll() {
     });
 }
 
+function doAddAllMods() {
+    const mods = [];
+    for (const child of document.getElementById("datalist-mods").children) {
+        mods.push(child.getAttribute("data-key"));
+    }
+
+    // Batch to avoid PayloadTooLargeError
+    const batchSize = 500;
+    const batches = [];
+    for (let i = 0; i < mods.length; i += batchSize) {
+        batches.push(mods.slice(i, i + batchSize));
+    }
+
+    batches.forEach(batch => {
+        revalidateAuthz(() => {
+            $.post({
+                url: "/api/missionInventoryUpdate.php?" + window.authz,
+                contentType: "text/plain",
+                data: JSON.stringify({
+                    RawUpgrades: batch.map(mod => ({
+                        ItemType: mod,
+                        ItemCount: 21 // Needed to fully upgrade certain arcanes
+                    }))
+                })
+            }).done(function () {
+                document.getElementById("mod-to-acquire").value = "";
+                updateInventory();
+            });
+        });
+    });
+}
+
 // Powersuit Route
 
 single.getRoute("#powersuit-route").on("beforeload", function () {