diff --git a/static/webui/index.html b/static/webui/index.html
index 586f255d..55676cd8 100644
--- a/static/webui/index.html
+++ b/static/webui/index.html
@@ -831,6 +831,7 @@
                             <div class="card-body">
                                 <div class="mb-2 d-flex flex-wrap gap-2">
                                     <button class="btn btn-primary" onclick="debounce(doUnlockAllMissions);" data-loc="cheats_unlockAllMissions"></button>
+                                    <button class="btn btn-primary" onclick="debounce(markAllAsRead);" data-loc="cheats_markAllAsRead"></button>
                                     <button class="btn btn-primary" onclick="doUnlockAllFocusSchools();" data-loc="cheats_unlockAllFocusSchools"></button>
                                     <button class="btn btn-primary" onclick="doHelminthUnlockAll();" data-loc="cheats_helminthUnlockAll"></button>
                                     <button class="btn btn-primary" onclick="debounce(addMissingHelminthRecipes);" data-loc="cheats_addMissingSubsumedAbilities"></button>
diff --git a/static/webui/script.js b/static/webui/script.js
index fc625ca8..e15d2bb8 100644
--- a/static/webui/script.js
+++ b/static/webui/script.js
@@ -2780,3 +2780,16 @@ document.querySelectorAll("#sidebar .nav-link").forEach(function (elm) {
         window.scrollTo(0, 0);
     });
 });
+
+async function markAllAsRead() {
+    await revalidateAuthz();
+    const { Inbox } = await fetch("/api/inbox.php?" + window.authz).then(x => x.json());
+    let any = false;
+    for (const msg of Inbox) {
+        if (!msg.r) {
+            await fetch("/api/inbox.php?" + window.authz + "&messageId=" + msg.messageId.$oid);
+            any = true;
+        }
+    }
+    toast(loc(any ? "code_succRelog" : "code_nothingToDo"));
+}
diff --git a/static/webui/translations/de.js b/static/webui/translations/de.js
index 43c03ae2..97fd3511 100644
--- a/static/webui/translations/de.js
+++ b/static/webui/translations/de.js
@@ -45,6 +45,8 @@ dict = {
     code_focusUnlocked: `|COUNT| neue Fokus-Schulen freigeschaltet! Ein Inventar-Update wird benötigt, damit die Änderungen im Spiel sichtbar werden. Die Sternenkarte zu besuchen, sollte der einfachste Weg sein, dies auszulösen.`,
     code_addModsConfirm: `Bist du sicher, dass du |COUNT| Mods zu deinem Account hinzufügen möchtest?`,
     code_succImport: `Erfolgreich importiert.`,
+    code_succRelog: `[UNTRANSLATED] Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `[UNTRANSLATED] Done. There was nothing to do.`,
     code_gild: `Veredeln`,
     code_moa: `Moa`,
     code_zanuka: `Jagdhund`,
@@ -200,6 +202,7 @@ dict = {
     cheats_changeSupportedSyndicate: `Unterstütztes Syndikat`,
     cheats_changeButton: `Ändern`,
     cheats_none: `Keines`,
+    cheats_markAllAsRead: `[UNTRANSLATED] Mark Inbox As Read`,
 
     worldState: `[UNTRANSLATED] World State`,
     worldState_creditBoost: `[UNTRANSLATED] Credit Boost`,
diff --git a/static/webui/translations/en.js b/static/webui/translations/en.js
index 84f7b0d1..02b316f2 100644
--- a/static/webui/translations/en.js
+++ b/static/webui/translations/en.js
@@ -44,6 +44,8 @@ dict = {
     code_focusUnlocked: `Unlocked |COUNT| new focus schools! An inventory update will be needed for the changes to be reflected in-game. Visiting the navigation should be the easiest way to trigger that.`,
     code_addModsConfirm: `Are you sure you want to add |COUNT| mods to your account?`,
     code_succImport: `Successfully imported.`,
+    code_succRelog: `Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `Done. There was nothing to do.`,
     code_gild: `Gild`,
     code_moa: `Moa`,
     code_zanuka: `Hound`,
@@ -199,6 +201,7 @@ dict = {
     cheats_changeSupportedSyndicate: `Supported syndicate`,
     cheats_changeButton: `Change`,
     cheats_none: `None`,
+    cheats_markAllAsRead: `Mark Inbox As Read`,
 
     worldState: `World State`,
     worldState_creditBoost: `Credit Boost`,
diff --git a/static/webui/translations/es.js b/static/webui/translations/es.js
index b4cd7c27..8e1fca1c 100644
--- a/static/webui/translations/es.js
+++ b/static/webui/translations/es.js
@@ -45,6 +45,8 @@ dict = {
     code_focusUnlocked: `¡Desbloqueadas |COUNT| nuevas escuelas de enfoque! Se necesita una actualización del inventario para reflejar los cambios en el juego. Visitar la navegación debería ser la forma más sencilla de activarlo.`,
     code_addModsConfirm: `¿Estás seguro de que deseas agregar |COUNT| modificadores a tu cuenta?`,
     code_succImport: `Importación exitosa.`,
+    code_succRelog: `[UNTRANSLATED] Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `[UNTRANSLATED] Done. There was nothing to do.`,
     code_gild: `Refinar`,
     code_moa: `Moa`,
     code_zanuka: `Sabueso`,
@@ -200,6 +202,7 @@ dict = {
     cheats_changeSupportedSyndicate: `Sindicatos disponibles`,
     cheats_changeButton: `Cambiar`,
     cheats_none: `Ninguno`,
+    cheats_markAllAsRead: `[UNTRANSLATED] Mark Inbox As Read`,
 
     worldState: `Estado del mundo`,
     worldState_creditBoost: `Potenciador de Créditos`,
diff --git a/static/webui/translations/fr.js b/static/webui/translations/fr.js
index a3445922..638f733f 100644
--- a/static/webui/translations/fr.js
+++ b/static/webui/translations/fr.js
@@ -45,6 +45,8 @@ dict = {
     code_focusUnlocked: `|COUNT| écoles de Focus déverrouillées ! Synchronisation de l'inventaire nécessaire.`,
     code_addModsConfirm: `Ajouter |COUNT| mods à l'inventaire ?`,
     code_succImport: `Importé.`,
+    code_succRelog: `[UNTRANSLATED] Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `[UNTRANSLATED] Done. There was nothing to do.`,
     code_gild: `Polir`,
     code_moa: `Moa`,
     code_zanuka: `Molosse`,
@@ -200,6 +202,7 @@ dict = {
     cheats_changeSupportedSyndicate: `Allégeance`,
     cheats_changeButton: `Changer`,
     cheats_none: `Aucun`,
+    cheats_markAllAsRead: `[UNTRANSLATED] Mark Inbox As Read`,
 
     worldState: `[UNTRANSLATED] World State`,
     worldState_creditBoost: `[UNTRANSLATED] Credit Boost`,
diff --git a/static/webui/translations/ru.js b/static/webui/translations/ru.js
index 9985bac7..cb7dc75f 100644
--- a/static/webui/translations/ru.js
+++ b/static/webui/translations/ru.js
@@ -45,6 +45,8 @@ dict = {
     code_focusUnlocked: `Разблокировано |COUNT| новых школ фокуса! Для отображения изменений в игре потребуется обновление инвентаря. Посещение навигации — самый простой способ этого добиться.`,
     code_addModsConfirm: `Вы уверены, что хотите добавить |COUNT| модов на ваш аккаунт?`,
     code_succImport: `Успешно импортировано.`,
+    code_succRelog: `[UNTRANSLATED] Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `[UNTRANSLATED] Done. There was nothing to do.`,
     code_gild: `Улучшить`,
     code_moa: `МОА`,
     code_zanuka: `Гончая`,
@@ -200,6 +202,7 @@ dict = {
     cheats_changeSupportedSyndicate: `Поддерживаемый синдикат`,
     cheats_changeButton: `Изменить`,
     cheats_none: `Отсутствует`,
+    cheats_markAllAsRead: `[UNTRANSLATED] Mark Inbox As Read`,
 
     worldState: `[UNTRANSLATED] World State`,
     worldState_creditBoost: `[UNTRANSLATED] Credit Boost`,
diff --git a/static/webui/translations/zh.js b/static/webui/translations/zh.js
index 6791960c..b7efc8c5 100644
--- a/static/webui/translations/zh.js
+++ b/static/webui/translations/zh.js
@@ -45,6 +45,8 @@ dict = {
     code_focusUnlocked: `已解锁|COUNT|个新专精学派!需要游戏内仓库更新才能生效,您可以通过访问星图来触发仓库更新.`,
     code_addModsConfirm: `确定要向账户添加|COUNT|张MOD吗?`,
     code_succImport: `导入成功。`,
+    code_succRelog: `[UNTRANSLATED] Done. Please note that you'll need to relog to see a difference in-game.`,
+    code_nothingToDo: `[UNTRANSLATED] Done. There was nothing to do.`,
     code_gild: `镀金`,
     code_moa: `恐鸟`,
     code_zanuka: `猎犬`,
@@ -200,6 +202,7 @@ dict = {
     cheats_changeSupportedSyndicate: `支持的集团`,
     cheats_changeButton: `更改`,
     cheats_none: `无`,
+    cheats_markAllAsRead: `[UNTRANSLATED] Mark Inbox As Read`,
 
     worldState: `世界状态配置`,
     worldState_creditBoost: `现金加成`,