diff --git a/src/routes/webui.ts b/src/routes/webui.ts
index fce710e5..998953fc 100644
--- a/src/routes/webui.ts
+++ b/src/routes/webui.ts
@@ -21,6 +21,9 @@ webuiRouter.use("/webui", (req, res, next) => {
 webuiRouter.get("/webui/inventory", (_req, res) => {
     res.sendFile(path.join(rootDir, "static/webui/index.html"));
 });
+webuiRouter.get("/webui/mods", (_req, res) => {
+    res.sendFile(path.join(rootDir, "static/webui/index.html"));
+});
 
 // Serve static files
 webuiRouter.use("/webui", express.static(path.join(rootDir, "static/webui")));
diff --git a/static/webui/index.html b/static/webui/index.html
index 3f7a736d..c8556dc3 100644
--- a/static/webui/index.html
+++ b/static/webui/index.html
@@ -52,6 +52,7 @@
                 <div class="offcanvas-body">
                     <ul>
                         <li><a href="/webui/inventory">Inventory</a></li>
+                        <li><a href="/webui/mods">Mods</a></li>
                     </ul>
                 </div>
             </div>
@@ -116,6 +117,29 @@
                         </div>
                     </div>
                 </div>
+                <div data-route="/webui/mods">
+                    <div class="card mb-4">
+                        <h5 class="card-header">Add Riven</h5>
+                        <form class="card-body" onsubmit="doAcquireRiven();return false;">
+                            <select class="form-control mb-3" id="addriven-type">
+                                <option value="LotusArchgunRandomModRare">LotusArchgunRandomModRare</option>
+                                <option value="LotusModularMeleeRandomModRare">LotusModularMeleeRandomModRare</option>
+                                <option value="LotusModularPistolRandomModRare">LotusModularPistolRandomModRare</option>
+                                <option value="LotusPistolRandomModRare">LotusPistolRandomModRare</option>
+                                <option value="LotusRifleRandomModRare" selected>LotusRifleRandomModRare</option>
+                                <option value="LotusShotgunRandomModRare">LotusShotgunRandomModRare</option>
+                                <option value="PlayerMeleeWeaponRandomModRare">PlayerMeleeWeaponRandomModRare</option>
+                            </select>
+                            <textarea
+                                id="addriven-fingerprint"
+                                class="form-control mb-3"
+                                placeholder="Fingerprint"
+                            ></textarea>
+                            <button class="btn btn-primary" style="margin-right: 5px" type="submit">Add</button>
+                            <a href="https://riven.builds.wf/" target="_blank">Need help with the fingerprint?</a>
+                        </form>
+                    </div>
+                </div>
             </div>
         </div>
         <datalist id="datalist-warframes"></datalist>
diff --git a/static/webui/script.js b/static/webui/script.js
index 8206d3ac..cf9d05fb 100644
--- a/static/webui/script.js
+++ b/static/webui/script.js
@@ -282,3 +282,66 @@ function doAcquireMiscItems() {
 $("#miscitem-name").on("input", () => {
     $("#miscitem-name").removeClass("is-invalid");
 });
+
+function doAcquireRiven() {
+    let fingerprint;
+    try {
+        fingerprint = JSON.parse($("#addriven-fingerprint").val());
+        if (typeof fingerprint !== "object") {
+            fingerprint = JSON.parse(fingerprint);
+        }
+    } catch (e) {}
+    if (
+        typeof fingerprint !== "object" ||
+        !("compat" in fingerprint) ||
+        !("pol" in fingerprint) ||
+        !("buffs" in fingerprint)
+    ) {
+        $("#addriven-fingerprint").addClass("is-invalid").focus();
+        return;
+    }
+    const uniqueName = "/Lotus/Upgrades/Mods/Randomized/" + $("#addriven-type").val();
+    // Add riven type to inventory
+    $.post({
+        url: "/api/missionInventoryUpdate.php?" + window.authz,
+        contentType: "text/plain",
+        data: JSON.stringify({
+            RawUpgrades: [
+                {
+                    ItemType: uniqueName,
+                    ItemCount: 1
+                }
+            ]
+        })
+    }).done(function () {
+        // Get riven's assigned id
+        $.get("/api/inventory.php?" + window.authz).done(data => {
+            for (const rawUpgrade of data.RawUpgrades) {
+                if (rawUpgrade.ItemType === uniqueName) {
+                    // Add fingerprint to riven
+                    $.post({
+                        url: "/api/artifacts.php?" + window.authz,
+                        contentType: "text/plain",
+                        data: JSON.stringify({
+                            Upgrade: {
+                                ItemType: uniqueName,
+                                UpgradeFingerprint: JSON.stringify(fingerprint),
+                                ItemId: rawUpgrade.LastAdded
+                            },
+                            LevelDiff: 0,
+                            Cost: 0,
+                            FusionPointCost: 0
+                        })
+                    }).done(function () {
+                        alert("Successfully added.");
+                    });
+                    break;
+                }
+            }
+        });
+    });
+}
+
+$("#addriven-fingerprint").on("input", () => {
+    $("#addriven-fingerprint").removeClass("is-invalid");
+});