feat: add Turkish localization

README.md

@@ -51,6 +51,18 @@ summarize "https://example.com" --cli codex
 
 The default `auto` model chooses among configured providers. The [five-minute quickstart](docs/quickstart.md) covers API keys, local models, files, YouTube, podcasts, and JSON output.
 
+### Turkish
+
+Select Turkish summaries with either spelling:
+
+```bash
+summarize "https://example.com" --language tr
+summarize "https://example.com" --language turkish
+```
+
+For Turkish CLI help and progress text, use `--locale tr` or set
+`SUMMARIZE_LOCALE=tr`. English remains the default interface language.
+
 ## What it handles
 
 | Input                        | Processing path                                                        |

apps/chrome-extension/README.md

@@ -9,6 +9,10 @@ Browser extension for Chrome and Firefox that streams AI-powered summaries direc
 
 Docs + setup: `https://summarize.sh`
 
+The output language setting accepts `tr`/`Turkish` for Turkish summaries. In
+Options → UI, set Interface language to Automatic (browser), English, or
+Turkish for the extension interface.
+
 ## Build
 
 - From repo root: `pnpm install`

apps/chrome-extension/src/entrypoints/automation.content.ts

@@ -1,5 +1,7 @@
 import { defineContentScript } from "wxt/utils/define-content-script";
 import { ALWAYS_ON_CONTENT_SCRIPT_EXCLUDE_MATCHES } from "../lib/content-script-matches";
+import { resolveExtensionLocale, translateExtensionText } from "../lib/i18n";
+import { loadSettings } from "../lib/settings";
 
 export type ElementInfo = {
   selector: string;
@@ -89,7 +91,10 @@ function getElementInfo(element: Element): ElementInfo {
   };
 }
 
-async function createElementPicker(message?: string): Promise<ElementInfo> {
+async function createElementPicker(
+  message: string | undefined,
+  locale: "en" | "tr",
+): Promise<ElementInfo> {
   if (window.__summarizeElementPicker) {
     throw new Error("Element picker already active");
   }
@@ -136,11 +141,14 @@ async function createElementPicker(message?: string): Promise<ElementInfo> {
     `;
 
     const bannerText = document.createElement("span");
-    bannerText.textContent = message || "Click an element to select • ↑↓ to change depth";
+    bannerText.textContent = translateExtensionText(
+      message || "Click an element to select • ↑↓ to change depth",
+      locale,
+    );
     banner.appendChild(bannerText);
 
     const cancelButton = document.createElement("button");
-    cancelButton.textContent = "Cancel (Esc)";
+    cancelButton.textContent = translateExtensionText("Cancel (Esc)", locale);
     cancelButton.style.cssText = `
       background: #1f2937;
       border: none;
@@ -230,7 +238,7 @@ async function createElementPicker(message?: string): Promise<ElementInfo> {
   });
 }
 
-function showReplOverlay(message?: string) {
+function showReplOverlay(message: string | undefined, locale: "en" | "tr") {
   if (window.__summarizeReplOverlay) return;
   window.__summarizeReplOverlay = true;
 
@@ -287,11 +295,14 @@ function showReplOverlay(message?: string) {
   card.appendChild(spinner);
 
   const text = document.createElement("span");
-  text.textContent = message ? `Running: ${message}` : "Running automation…";
+  text.textContent = translateExtensionText(
+    message ? `Running: ${message}` : "Running automation…",
+    locale,
+  );
   card.appendChild(text);
 
   const abortBtn = document.createElement("button");
-  abortBtn.textContent = "Abort (Esc)";
+  abortBtn.textContent = translateExtensionText("Abort (Esc)", locale);
   abortBtn.style.cssText = `
     background: #1f2937;
     border: none;
@@ -376,6 +387,13 @@ export default defineContentScript({
     if ((globalThis as unknown as Record<string, unknown>)[flag]) return;
     (globalThis as unknown as Record<string, unknown>)[flag] = true;
 
+    let locale = resolveExtensionLocale();
+    void loadSettings()
+      .then((settings) => {
+        locale = resolveExtensionLocale(settings.uiLocale);
+      })
+      .catch(() => undefined);
+
     handleNativeInputBridge();
 
     chrome.runtime.onMessage.addListener(
@@ -387,7 +405,7 @@ export default defineContentScript({
         if (raw?.type === "automation:pick-element") {
           void (async () => {
             try {
-              const result = await createElementPicker(raw.message ?? undefined);
+              const result = await createElementPicker(raw.message ?? undefined, locale);
               sendResponse({ ok: true, result });
             } catch (error) {
               const message = error instanceof Error ? error.message : String(error);
@@ -398,7 +416,7 @@ export default defineContentScript({
         }
         if (raw?.type === "automation:repl-overlay") {
           if (raw.action === "show") {
-            showReplOverlay(raw.message ?? undefined);
+            showReplOverlay(raw.message ?? undefined, locale);
           } else if (raw.action === "hide") {
             hideReplOverlay();
           }

apps/chrome-extension/src/entrypoints/options/bindings.ts

@@ -29,6 +29,7 @@ type OptionsBindingsArgs = {
     autoCliOrderEl: HTMLInputElement;
     fontFamilyEl: HTMLInputElement;
     fontSizeEl: HTMLInputElement;
+    uiLocaleEl: HTMLSelectElement;
     logsSourceEl: HTMLSelectElement;
     logsTailEl: HTMLInputElement;
     logsParsedEl: HTMLInputElement;
@@ -102,6 +103,10 @@ export function bindOptionsInputs({
     scheduleAutoSave(200);
   });
 
+  elements.uiLocaleEl.addEventListener("change", () => {
+    scheduleAutoSave(0);
+  });
+
   elements.hoverPromptResetBtn.addEventListener("click", () => {
     elements.hoverPromptEl.value = defaultHoverPrompt;
     scheduleAutoSave(200);

apps/chrome-extension/src/entrypoints/options/elements.ts

@@ -57,6 +57,7 @@ export function getOptionsElements() {
     retriesEl: byId<HTMLInputElement>("retries"),
     maxOutputTokensEl: byId<HTMLInputElement>("maxOutputTokens"),
     pickersRoot: byId<HTMLDivElement>("pickersRoot"),
+    uiLocaleEl: byId<HTMLSelectElement>("uiLocale"),
     fontFamilyEl: byId<HTMLInputElement>("fontFamily"),
     fontSizeEl: byId<HTMLInputElement>("fontSize"),
     buildInfoEl: document.getElementById("buildInfo"),

apps/chrome-extension/src/entrypoints/options/form-state.ts

@@ -26,6 +26,7 @@ type FormElements = {
   maxOutputTokensEl: HTMLInputElement;
   fontFamilyEl: HTMLInputElement;
   fontSizeEl: HTMLInputElement;
+  uiLocaleEl: HTMLSelectElement;
 };
 
 type BooleanFormState = {
@@ -60,6 +61,7 @@ export function buildSavedOptionsSettings({
   currentMode: ColorMode;
 }): Settings {
   return {
+    uiLocale: elements.uiLocaleEl.value as Settings["uiLocale"],
     token: elements.tokenEl.value || defaults.token,
     daemonPort: elements.daemonPortEl.value || defaults.daemonPort,
     summaryRuntime: booleans.summaryRuntime,
@@ -157,6 +159,7 @@ export function applyLoadedOptionsSettings({
   elements.maxOutputTokensEl.value = settings.maxOutputTokens;
   elements.fontFamilyEl.value = settings.fontFamily;
   elements.fontSizeEl.value = String(settings.fontSize);
+  elements.uiLocaleEl.value = settings.uiLocale;
 
   return {
     booleans: {

apps/chrome-extension/src/entrypoints/options/index.html

@@ -6,7 +6,7 @@
     <title>Summarize Settings</title>
     <link rel="stylesheet" href="./style.css" />
   </head>
-  <body>
+  <body data-locale-ui>
     <main>
       <div class="top">
         <h1>Summarize Settings</h1>
@@ -347,6 +347,14 @@ <h2>Daemon</h2>
             <h2>UI</h2>
             <div class="uiGrid">
               <div id="pickersRoot"></div>
+              <label>
+                <span>Interface language</span>
+                <select id="uiLocale">
+                  <option value="auto">Automatic (browser)</option>
+                  <option value="en">English</option>
+                  <option value="tr">Turkish</option>
+                </select>
+              </label>
               <label>
                 <span>Font family (CSS)</span>
                 <input id="fontFamily" type="text" />

apps/chrome-extension/src/entrypoints/options/logs-viewer.ts

@@ -263,6 +263,7 @@ export function createLogsViewer(options: LogsViewerOptions): LogsViewer {
     for (const entry of entries) {
       if (!activeLevels.has(entry.level)) continue;
       const row = document.createElement("tr");
+      row.dataset.localeIgnore = "true";
       const timeCell = document.createElement("td");
       timeCell.textContent = entry.time || "—";
       const levelCell = document.createElement("td");

apps/chrome-extension/src/entrypoints/options/main.ts

@@ -1,4 +1,5 @@
 import type { CacheStats } from "@steipete/summarize-core/runtime";
+import { applyExtensionLocale, resolveExtensionLocale } from "../../lib/i18n";
 import { defaultSettings, loadSettings, saveSettings } from "../../lib/settings";
 import { applyTheme, type ColorMode, type ColorScheme } from "../../lib/theme";
 import { bindOptionsInputs } from "./bindings";
@@ -77,6 +78,7 @@ const {
   pickersRoot,
   fontFamilyEl,
   fontSizeEl,
+  uiLocaleEl,
   buildInfoEl,
   daemonStatusEl,
   browserCacheStatusEl,
@@ -250,6 +252,7 @@ const settingsElements = {
   maxOutputTokensEl,
   fontFamilyEl,
   fontSizeEl,
+  uiLocaleEl,
 };
 
 const { saveNow, scheduleAutoSave } = createOptionsSaveRuntime({
@@ -452,6 +455,7 @@ automationPermissionsBtn.addEventListener("click", () => {
 
 async function load() {
   const [s] = await Promise.all([loadSettings(), daemonCapability?.initialize()]);
+  applyExtensionLocale(resolveExtensionLocale(s.uiLocale));
   activeProvider = s.provider;
   await modelPresets.refreshPresets(s.token);
   modelPresets.setValue(s.model);
@@ -542,6 +546,7 @@ bindOptionsInputs({
     autoCliOrderEl,
     fontFamilyEl,
     fontSizeEl,
+    uiLocaleEl,
     logsSourceEl,
     logsTailEl,
     logsParsedEl,
@@ -559,6 +564,10 @@ bindOptionsInputs({
   defaultHoverPrompt: defaultSettings.hoverPrompt,
 });
 
+uiLocaleEl.addEventListener("change", () => {
+  applyExtensionLocale(resolveExtensionLocale(uiLocaleEl.value as "auto" | "en" | "tr"));
+});
+
 applyBuildInfo(buildInfoEl, {
   injectedVersion:
     typeof __SUMMARIZE_VERSION__ === "string" && __SUMMARIZE_VERSION__ ? __SUMMARIZE_VERSION__ : "",

apps/chrome-extension/src/entrypoints/options/processes-viewer.ts

@@ -167,9 +167,11 @@ export function createProcessesViewer(options: ProcessesViewerOptions): Processe
       if (selectedId === item.id) row.classList.add("selected");
 
       const toolCell = document.createElement("td");
+      toolCell.dataset.localeIgnore = "true";
       toolCell.textContent = item.label || item.kind || item.command;
 
       const pidCell = document.createElement("td");
+      pidCell.dataset.localeIgnore = "true";
       pidCell.textContent = item.pid ? String(item.pid) : "—";
 
       const statusCell = document.createElement("td");
@@ -180,12 +182,15 @@ export function createProcessesViewer(options: ProcessesViewerOptions): Processe
       elapsedCell.textContent = formatElapsed(item.elapsedMs);
 
       const progressCell = document.createElement("td");
+      progressCell.dataset.localeIgnore = "true";
       progressCell.textContent = formatProgress(item) || "—";
 
       const runCell = document.createElement("td");
+      runCell.dataset.localeIgnore = "true";
       runCell.textContent = item.runId ? item.runId.slice(0, 8) : "—";
 
       const cmdCell = document.createElement("td");
+      cmdCell.dataset.localeIgnore = "true";
       const cmd = buildCommandLabel(item);
       cmdCell.textContent = cmd.length > 120 ? `${cmd.slice(0, 120)}…` : cmd;
       cmdCell.title = cmd;

apps/chrome-extension/src/entrypoints/options/skills-controller.ts

@@ -5,6 +5,7 @@ import {
   type Skill,
   saveSkill,
 } from "../../automation/skills-store";
+import { getActiveExtensionLocale, translateExtensionText } from "../../lib/i18n";
 
 type SkillConflict = { skill: Skill; selected: boolean };
 
@@ -49,7 +50,10 @@ export function createSkillsController({
   };
 
   const deleteSkillWithPrompt = async (skill: Skill) => {
-    if (!confirm(`Delete skill "${skill.name}"?`)) return;
+    if (
+      !confirm(translateExtensionText(`Delete skill "${skill.name}"?`, getActiveExtensionLocale()))
+    )
+      return;
     await deleteSkill(skill.name);
     editingSkill = null;
     await loadSkills();
@@ -112,14 +116,17 @@ export function createSkillsController({
 
         const name = document.createElement("div");
         name.className = "skillName";
+        name.dataset.localeIgnore = "true";
         name.textContent = conflict.skill.name;
 
         const domains = document.createElement("div");
         domains.className = "skillDomains";
+        domains.dataset.localeIgnore = "true";
         domains.textContent = conflict.skill.domainPatterns.join(", ");
 
         const desc = document.createElement("div");
         desc.className = "skillDescription";
+        desc.dataset.localeIgnore = "true";
         desc.textContent = conflict.skill.shortDescription;
 
         content.append(name, domains, desc);
@@ -161,6 +168,7 @@ export function createSkillsController({
 
         const heading = document.createElement("div");
         heading.className = "skillName";
+        heading.dataset.localeIgnore = "true";
         heading.textContent = `Edit skill: ${editingSkill.name}`;
 
         const nameLabel = document.createElement("label");
@@ -272,16 +280,19 @@ export function createSkillsController({
 
       const name = document.createElement("div");
       name.className = "skillName";
+      name.dataset.localeIgnore = "true";
       name.textContent = skill.name;
 
       const domains = document.createElement("div");
       domains.className = "skillDomains";
+      domains.dataset.localeIgnore = "true";
       domains.textContent = skill.domainPatterns.join(", ");
 
       header.append(name, domains);
 
       const desc = document.createElement("div");
       desc.className = "skillDescription";
+      desc.dataset.localeIgnore = "true";
       desc.textContent = skill.shortDescription;
 
       const actions = document.createElement("div");

apps/chrome-extension/src/entrypoints/sidepanel/bindings.ts

@@ -189,11 +189,13 @@ export function bindSettingsStorage({
   panelState,
   dispatchPanelState,
   applyChatEnabled,
+  applyLocale,
   hideAutomationNotice,
 }: {
   panelState: PanelState;
   dispatchPanelState?: (action: PanelStateAction) => void;
   applyChatEnabled: () => void;
+  applyLocale: (locale: Settings["uiLocale"]) => void;
   hideAutomationNotice: () => void;
 }) {
   const dispatch = (action: PanelStateAction) => {
@@ -219,6 +221,15 @@ export function bindSettingsStorage({
         },
       });
     }
+    const nextUiLocale = (nextSettings as Partial<Settings>).uiLocale;
+    const previousUiLocale = (changes.settings?.oldValue as Partial<Settings> | undefined)
+      ?.uiLocale;
+    if (
+      (nextUiLocale === "en" || nextUiLocale === "tr" || nextUiLocale === "auto") &&
+      nextUiLocale !== previousUiLocale
+    ) {
+      applyLocale(nextUiLocale);
+    }
     const nextChatEnabled = (nextSettings as { chatEnabled?: unknown }).chatEnabled;
     if (typeof nextChatEnabled === "boolean") {
       dispatch({