diff --git a/README.md b/README.md
index a09f525..f03ef21 100644
--- a/README.md
+++ b/README.md
@@ -631,6 +631,13 @@ data: [DONE]
 
 ## Changelog
 
+### v1.2.4 (2026-05-19)
+- **Save button** on every code block — downloads code as a file to your device
+- **Copy & Save** buttons on every AI response message
+- **File path highlighting** — paths like `/app/build/file.apk` are tappable badges (tap to copy)
+- Smart filename detection from code block first line or language
+- 30+ language-to-extension mappings for proper file saving
+
 ### v1.2.3 (2026-05-19)
 - Fixed: Connect button not working — missing `updateSendButton()` function declaration caused JS parse error
 - All UI event handlers now correctly initialized on app start
diff --git a/android/app/build.gradle b/android/app/build.gradle
index d6c371f..64ef2f2 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "ai.z.chat"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 5
-        versionName "1.2.3"
+        versionCode 6
+        versionName "1.2.4"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
             ignoreAssetsPattern = '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
diff --git a/package.json b/package.json
index 6acfdbf..dd3e531 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zai-chat",
-  "version": "1.2.3",
+  "version": "1.2.4",
   "description": "Z.AI Chat - Full stack AI chat powered by GLM Coding Plan",
   "main": "index.js",
   "scripts": {
diff --git a/www/css/styles.css b/www/css/styles.css
index 04ee7f3..adcea98 100644
--- a/www/css/styles.css
+++ b/www/css/styles.css
@@ -418,7 +418,8 @@ a:hover { text-decoration: underline; }
     border-bottom: none;
 }
 .code-header + pre { border-top-left-radius: 0; border-top-right-radius: 0; }
-.copy-btn {
+.code-header-actions { display: flex; gap: 4px; align-items: center; }
+.copy-btn, .download-btn {
     background: var(--accent-dim);
     border: none;
     color: var(--accent);
@@ -426,8 +427,51 @@ a:hover { text-decoration: underline; }
     border-radius: 4px;
     font-size: 11px;
     cursor: pointer;
+    transition: all var(--transition);
 }
-.copy-btn:hover { background: var(--accent); color: white; }
+.copy-btn:hover, .download-btn:hover { background: var(--accent); color: white; }
+
+.msg-actions {
+    display: flex;
+    gap: 6px;
+    margin-top: 8px;
+    padding-top: 8px;
+    border-top: 1px solid var(--border);
+}
+.msg-action-btn {
+    background: var(--accent-dim);
+    border: none;
+    color: var(--accent);
+    padding: 5px 12px;
+    border-radius: 6px;
+    font-size: 12px;
+    font-weight: 600;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    transition: all var(--transition);
+}
+.msg-action-btn:hover { background: var(--accent); color: white; }
+.msg-action-btn.copied { background: var(--success); color: white; }
+
+.filepath-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 4px;
+    background: var(--accent-dim);
+    border: 1px solid var(--accent);
+    color: var(--accent);
+    padding: 2px 8px;
+    border-radius: 4px;
+    font-family: 'Fira Code', 'JetBrains Mono', monospace;
+    font-size: 12px;
+    cursor: pointer;
+    transition: all var(--transition);
+    word-break: break-all;
+}
+.filepath-badge:hover { background: var(--accent); color: white; }
+.filepath-badge::before { content: '📁'; font-size: 11px; }
 
 .thinking-indicator {
     display: flex;
diff --git a/www/index.html b/www/index.html
index 77296f4..90ef874 100644
--- a/www/index.html
+++ b/www/index.html
@@ -197,13 +197,24 @@
                     </div>
                     <div class="settings-section">
                         <h3>About</h3>
-                         <p class="about-text">Z.AI Chat v1.2.3</p>
+                         <p class="about-text">Z.AI Chat v1.2.4</p>
                         <p class="about-text">Built with Z.AI SDK &amp; GLM-5.1</p>
                         <p class="about-text">Compatible with Android 15/16</p>
                     </div>
                     <div class="settings-section">
                         <h3>Changelog</h3>
                         <ul class="changelog-list">
+                            <li>
+                                <span class="changelog-version">v1.2.4</span>
+                                <span class="changelog-date">2026-05-19</span>
+                                <ul>
+                                    <li>Save button on every code block — downloads code as a real file to your phone</li>
+                                    <li>Copy & Save buttons on every AI response — one-tap copy or save as .txt</li>
+                                    <li>File paths in AI responses are now highlighted and tappable (tap to copy)</li>
+                                    <li>Smart filename detection — auto-names saved files from code content</li>
+                                    <li>30+ language-to-extension mappings for proper file saving</li>
+                                </ul>
+                            </li>
                             <li>
                                 <span class="changelog-version">v1.2.3</span>
                                 <span class="changelog-date">2026-05-19</span>
diff --git a/www/js/app.js b/www/js/app.js
index 673c9b1..0fa0582 100644
--- a/www/js/app.js
+++ b/www/js/app.js
@@ -226,6 +226,40 @@
         return text.replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\n/g, '<br>');
     }
 
+    var EXT_MAP = {
+        python: 'py', py: 'py', javascript: 'js', js: 'js', typescript: 'ts', ts: 'ts',
+        java: 'java', kotlin: 'kt', kt: 'kt', html: 'html', css: 'css', json: 'json',
+        xml: 'xml', yaml: 'yml', yml: 'yml', markdown: 'md', md: 'md', sql: 'sql',
+        shell: 'sh', bash: 'sh', sh: 'sh', powershell: 'ps1', dockerfile: 'Dockerfile',
+        ruby: 'rb', go: 'go', rust: 'rs', c: 'c', cpp: 'cpp', csharp: 'cs',
+        swift: 'swift', php: 'php', perl: 'pl', scala: 'scala', groovy: 'groovy',
+        gradle: 'gradle', properties: 'properties', toml: 'toml', ini: 'ini',
+        dart: 'dart', lua: 'lua', r: 'r', protobuf: 'proto'
+    };
+
+    function guessFileName(code, lang) {
+        var firstLine = code.trim().split('\n')[0];
+        if (/^(\/|\.\/|\.\.\/|[A-Za-z]:\\|[a-zA-Z0-9_\-]+\.[a-zA-Z]{1,10})/.test(firstLine) &&
+            firstLine.length < 120 && firstLine.split('\n').length === 1 &&
+            /\.\w+$/.test(firstLine)) {
+            return firstLine.replace(/^.*[\/\\]/, '');
+        }
+        var ext = EXT_MAP[lang] || lang || 'txt';
+        return 'code.' + ext;
+    }
+
+    function downloadFile(content, filename) {
+        var blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        document.body.appendChild(a);
+        a.click();
+        document.body.removeChild(a);
+        setTimeout(function() { URL.revokeObjectURL(url); }, 5000);
+    }
+
     function addCodeHeaders(container) {
         container.querySelectorAll('pre code').forEach(function(block) {
             var pre = block.parentElement;
@@ -233,7 +267,11 @@
             if (!pre.previousElementSibling || !pre.previousElementSibling.classList.contains('code-header')) {
                 var header = document.createElement('div');
                 header.className = 'code-header';
-                header.innerHTML = '<span>' + escapeHtml(lang) + '</span><button class="copy-btn">Copy</button>';
+                var fileName = guessFileName(block.textContent, lang);
+                header.innerHTML = '<span>' + escapeHtml(lang) + '</span>' +
+                    '<div class="code-header-actions">' +
+                    '<button class="download-btn" data-filename="' + escapeHtml(fileName) + '">Save</button>' +
+                    '<button class="copy-btn">Copy</button></div>';
                 pre.parentElement.insertBefore(header, pre);
                 header.querySelector('.copy-btn').addEventListener('click', function() {
                     navigator.clipboard.writeText(block.textContent).then(function() {
@@ -241,10 +279,48 @@
                         setTimeout(function() { this.textContent = 'Copy'; }.bind(this), 2000);
                     }.bind(this));
                 });
+                header.querySelector('.download-btn').addEventListener('click', function() {
+                    var fn = this.getAttribute('data-filename');
+                    var code = block.textContent;
+                    if (fn && /\.\w+$/.test(fn)) {
+                        var lines = code.split('\n');
+                        if (lines[0].trim() === fn || lines[0].trim().endsWith('/' + fn)) {
+                            code = lines.slice(1).join('\n');
+                        }
+                    }
+                    downloadFile(code, fn);
+                    this.textContent = 'Saved!';
+                    setTimeout(function() { this.textContent = 'Save'; }.bind(this), 2000);
+                });
             }
         });
     }
 
+    function highlightFilePaths(html) {
+        return html.replace(
+            /(^|[\s(>])(\/(?:[\w\-\.]+\/){1,}[\w\-\.]+\.\w{1,10})([\s)<,]|$)/gm,
+            '$1<span class="filepath-badge" tabindex="0">$2</span>$3'
+        );
+    }
+
+    function addFilePathHandlers(container) {
+        container.querySelectorAll('.filepath-badge').forEach(function(badge) {
+            badge.addEventListener('click', function() {
+                var path = this.textContent;
+                navigator.clipboard.writeText(path).then(function() {
+                    badge.style.background = 'var(--success)';
+                    badge.style.borderColor = 'var(--success)';
+                    badge.style.color = 'white';
+                    setTimeout(function() {
+                        badge.style.background = '';
+                        badge.style.borderColor = '';
+                        badge.style.color = '';
+                    }, 1500);
+                });
+            });
+        });
+    }
+
     function renderMessages() {
         var container = $('#messages');
         if (!container) return;
@@ -270,6 +346,33 @@
         if (role === 'assistant') {
             div.innerHTML = renderMarkdown(content);
             addCodeHeaders(div);
+            var processed = highlightFilePaths(div.innerHTML);
+            if (processed !== div.innerHTML) {
+                div.innerHTML = processed;
+                addFilePathHandlers(div);
+            }
+            var actionBar = document.createElement('div');
+            actionBar.className = 'msg-actions';
+            actionBar.innerHTML =
+                '<button class="msg-action-btn msg-copy-btn">Copy</button>' +
+                '<button class="msg-action-btn msg-save-btn">Save .txt</button>';
+            div.appendChild(actionBar);
+            actionBar.querySelector('.msg-copy-btn').addEventListener('click', function() {
+                var btn = this;
+                navigator.clipboard.writeText(content).then(function() {
+                    btn.textContent = 'Copied!';
+                    btn.classList.add('copied');
+                    setTimeout(function() { btn.textContent = 'Copy'; btn.classList.remove('copied'); }, 2000);
+                });
+            });
+            actionBar.querySelector('.msg-save-btn').addEventListener('click', function() {
+                var btn = this;
+                var conv = getConversation();
+                var fn = (conv ? conv.title : 'response').replace(/[^a-zA-Z0-9_\-]/g, '_').substring(0, 40);
+                downloadFile(content, fn + '.txt');
+                btn.textContent = 'Saved!';
+                setTimeout(function() { btn.textContent = 'Save .txt'; }, 2000);
+            });
         } else {
             div.textContent = content;
         }
@@ -281,6 +384,20 @@
     function updateStreamingMessage(div, content) {
         div.innerHTML = renderMarkdown(content);
         addCodeHeaders(div);
+        var processed = highlightFilePaths(div.innerHTML);
+        if (processed !== div.innerHTML) {
+            div.innerHTML = processed;
+            addFilePathHandlers(div);
+        }
+        var actions = div.querySelector('.msg-actions');
+        if (!actions) {
+            var actionBar = document.createElement('div');
+            actionBar.className = 'msg-actions';
+            actionBar.innerHTML =
+                '<button class="msg-action-btn msg-copy-btn">Copy</button>' +
+                '<button class="msg-action-btn msg-save-btn">Save .txt</button>';
+            div.appendChild(actionBar);
+        }
         $('#messages').scrollTop = $('#messages').scrollHeight;
     }