{"id":4618,"date":"2025-12-12T09:22:25","date_gmt":"2025-12-12T09:22:25","guid":{"rendered":"https:\/\/signmycode.com\/resources\/?p=4618"},"modified":"2025-12-12T09:22:27","modified_gmt":"2025-12-12T09:22:27","slug":"how-to-code-signing-an-electron-js-app-for-macos","status":"publish","type":"post","link":"https:\/\/signmycode.com\/resources\/how-to-code-signing-an-electron-js-app-for-macos","title":{"rendered":"How to Code Signing an Electron.js App for macOS?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Why Code Signing Isn\u2019t Optional?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019ve ever tried running an unsigned app on macOS, you already know how brutal the experience is. You double-click your .app file, and that dreaded message appears: \u201cThis app can\u2019t be opened because it\u2019s from an unidentified developer.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And that\u2019s it. Your user instantly loses trust. Your credibility? Gone.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/signmycode.com\/apple-code-signing\">Buy Apple Code Signing Certificate<\/a> and Sign iOS or MacOs Apps<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">That warning isn\u2019t just a random pop-up. It\u2019s Apple\u2019s way of protecting users from unverified software that hasn\u2019t been proven to be from a trusted source, or what it might do.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That\u2019s where <a href=\"https:\/\/signmycode.com\/blog\/what-is-a-code-signing-within-the-public-key-infrastructure-pki\">code signing<\/a> comes in. Code signing is Apple\u2019s way of saying, \u201cYes, this app is safe. Yes, it came from a verified developer. And no, it hasn\u2019t been tampered with.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Let\u2019s break down why skipping code signing on macOS is a disaster waiting to happen:<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Prevent Scary Warnings<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The Gatekeeper, which is the built-in security of macOS, is activated by the use of apps that are not signed. Lack of a signature means that your application gets a threatening message from an unidentified developer. And, by the way, 99 per cent of the users will not open it anyway. They&#8217;ll delete your app.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Security Standards Gatekeeper at Apple<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The Gatekeeper of Apple will verify the signature of each app prior to it being run. Unless your application is signed or notarised, it is automatically flagged.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By signing your code, you will be part of the Apple security ecosystem and not in conflict with it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Protect Against Tampering or Malware Injection<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When you sign your app, macOS locks it down with a cryptographic seal. That means if anyone tries to modify your files after signing, even a single byte, the system will instantly detect it and block execution.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Build Instant Trust with Users<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Users feel safer when they see \u201cVerified Developer\u201d or no warning at all. It\u2019s like the blue checkmark of macOS apps, a visual cue that screams credibility.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding Apple\u2019s Security<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gatekeeper and Notarization are Apple\u2019s twin guardians that decide whether your app deserves to live on a Mac.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gatekeeper<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">He checks your app\u2019s credentials specifically, its digital signature, and asks one question: \u201cCan I trust this developer?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your app is code signed, Gatekeeper nods and lets it in without fuss. If not? You\u2019re turned away at the door with the dreaded message: \u201cApp can\u2019t be opened because it\u2019s from an unidentified developer.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That single pop-up is enough to kill user confidence because it tells them, \u201cThis app might not be safe.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Recommended:<\/strong> <a href=\"https:\/\/signmycode.com\/blog\/apple-has-officially-stopped-signing-ios-18-5-and-ios-17-7\">Apple has Officially Stopped Signing iOS 18.5 &amp; 17.7<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Apple\u2019s Notarization<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Simply uttering your application is reliable does not make Apple believe you. It is there that Notarization comes in, and the further security checks of Apple. It&#8217;s not about who you are. It is concerning what is inside your app.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When you submit your app to be notarised, you are essentially sending it to the servers of Apple, which do a fast <a href=\"https:\/\/signmycode.com\/blog\/how-to-check-if-file-has-virus-or-not-before-downloading\">malware check<\/a> of your app. Apple scans it and makes sure it is clean, and adds a digital ticket known as notarization.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Choosing the Right Developer Certificate<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apple doesn\u2019t offer just one certificate. It offers two different types, and choosing the wrong one can make your signing process a nightmare.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Developer ID Application Certificate<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is your go-to certificate if you plan to distribute your Electron app outside the Mac App Store, maybe on your website, GitHub releases, or through direct downloads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mac App Store Certificates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">These certificates are designed specifically for apps that you distribute through the Mac App Store.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>There are two flavours here:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mac App Development Certificate<\/strong> <strong>\u2192<\/strong> For testing and debugging during development.<\/li>\n\n\n\n<li><strong>Mac App Distribution Certificate \u2192<\/strong> For submitting your final app to the Mac App Store.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also Read:<\/strong> <a href=\"https:\/\/signmycode.com\/resources\/a-detailed-guide-on-how-to-code-sign-ios-apps-on-apple\">How to Code Sign iOS Apps on Apple Developer Program?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6 Steps to Signing an Electron.js App for macOS<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Enroll in the Apple Developer Program<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Before you can sign anything, notarise anything, or even whisper the words \u201cmacOS distribution\u201d, Apple needs to know who you are. And no, just having a Mac or an Apple ID isn\u2019t enough. You need to officially join the Apple Developer Program.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">How to Enroll:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Visit the Apple Developer Program page. <\/strong>This is where it all begins. Apple gives you access to certificates, signing tools, TestFlight, and more.<\/li>\n\n\n\n<li><strong>Sign in with your Apple ID. <\/strong>If you don\u2019t have one yet, create one. It\u2019s free and quick.<\/li>\n\n\n\n<li><strong>Enrol in the program and pay the annual $99 fee. <\/strong>That\u2019s right $99 per year for official Apple recognition.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Generate Your Code Signing Certificate<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is the digital signature that proves to macOS, \u201cHey, this app really came from you.\u201d And the best part? You can get it in two simple ways.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Method 1: The Xcode Way<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re using macOS (which you should be for signing), Apple makes it super simple through Xcode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Here\u2019s how:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Open Xcode<\/strong> on your Mac.<\/li>\n\n\n\n<li>Go to <strong>Xcode \u2192 Settings (or Preferences) \u2192 Accounts<\/strong>.<\/li>\n\n\n\n<li><strong>Add your Apple ID<\/strong> if you haven\u2019t already.<\/li>\n\n\n\n<li><strong>Select your developer team<\/strong>.<\/li>\n\n\n\n<li><strong>Click Manage Certificates<\/strong>.<\/li>\n\n\n\n<li><strong>Hit the \u201c+\u201d button \u2192 Choose Developer ID <\/strong>Application Certificate.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Xcode automatically requests and installs your certificate for you.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Recommended:<\/strong> <a href=\"https:\/\/signmycode.com\/resources\/troubleshooting-common-code-signing-issues-in-xcode-14-15\">Troubleshooting Common Code Signing Issues in Xcode 14 &amp; 15<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Method 2: The Apple Developer Portal<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Prefer the manual route? Here\u2019s how to do it directly from the web:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Visit <strong>Apple\u2019s Certificates, Identifiers &amp; Profiles<\/strong><\/li>\n\n\n\n<li><strong>Click the \u201c+\u201d<\/strong> button to create a new certificate.<\/li>\n\n\n\n<li><strong>Choose Developer ID Application<\/strong> as your certificate type.<\/li>\n\n\n\n<li>Follow the on-screen steps to upload your CSR.<\/li>\n\n\n\n<li>Download the generated certificate.<\/li>\n\n\n\n<li>Install it by double-clicking it, and it\u2019ll show up in your Mac\u2019s Keychain Access.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Set Up Your Electron.js Project for macOS Signing<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Install electron-builder by running this command<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>npm install electron-builder --save-dev<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Wire up your build script<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Add a script to package.json so you can build with one command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n\"scripts\": {\n\"build\": \"electron-builder --mac\"\n}\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Add macOS build config<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">You can keep it in package.json under &#8220;build&#8221; or in electron-builder.yml. Use whichever you prefer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Option A \u2014 package.json config<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n\"name\": \"my-electron-app\",\n\"version\": \"1.0.0\",\n\"build\": {\n\"appId\": \"com.example.myapp\",\n\"productName\": \"MyElectronApp\",\n\"files\": &#91;\n\"dist\/**\/*\",\n\"node_modules\/**\/*\",\n\"main.js\",\n\"package.json\"\n],\n\"mac\": {\n\"target\": &#91;\"dmg\", \"zip\"],\n\"category\": \"public.app-category.utilities\",\n\"icon\": \"build\/icon.icns\",\n\"hardenedRuntime\": true,\n\"entitlements\": \"build\/entitlements.mac.plist\",\n\"entitlementsInherit\": \"build\/entitlements.mac.plist\",\n\"identity\": \"Developer ID Application: Your Name (TEAMID)\"\n},\n\"afterSign\": \"scripts\/notarize.js\"\n}\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Option B \u2014 electron-builder.yml<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>appId: com.example.myapp\nproductName: MyElectronApp\nfiles:\n- dist\/**\n- node_modules\/**\n- main.js\n- package.json\nmac:\ntarget:\n- dmg\n- zip\ncategory: public.app-category.utilities\nicon: build\/icon.icns\nhardenedRuntime: true\nentitlements: build\/entitlements.mac.plist\nentitlementsInherit: build\/entitlements.mac.plist\nidentity: Developer ID Application: Your Name (TEAMID)\nafterSign: scripts\/notarize.js<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Sign Your App<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Electron apps can be signed using electron-builder or manually via codesign:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Using electron-builder<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">If your certificate is installed and your config is set, this is all you need:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run build<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5: Have Your Application Notarised<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MacOS does not consider your Electron app to be entirely safe until you have signed it and it is notarized. It is a kind of background check at Apple. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You submit your app to them, they scan it and check it to make sure that there is nothing suspicious, and in case all seems well, they nod their heads in silent approval.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">First, you bundle up your app:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>cd \/path\/to\/your\/app\/\nzip -r MyElectronApp.zip MyElectronApp.app<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Then you send it off to Apple\u2019s servers for review:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>xcrun altool --notarize-app \\\n--primary-bundle-id \"com.example.myapp\" \\\n--username \"your-apple-id@example.com\" \\\n--password \"your-app-specific-password\" \\\n--file MyElectronApp.zip<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">That password isn\u2019t your Apple login. It\u2019s an app-specific password you create in your Apple ID settings. Apple won\u2019t tell you instantly whether you passed; it takes a bit. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">You can check the status like this:<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>xcrun altool --notarization-info &lt;RequestUUID&gt; \\\n--username \"your-apple-id@example.com\" \\\n--password \"your-app-specific-password\"<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If all goes well, Apple gives your app a notarization ticket, basically a proof of inspection. <strong>You \u201cstaple\u201d that ticket to your app so it always travels with it:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>xcrun stapler staple \/path\/to\/your\/app\/MyElectronApp.app<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">That last command feels almost ceremonial. After stapling, your app is truly ready to face macOS users, no more warnings, no more \u201cunidentified developer\u201d screens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Recommended:<\/strong> <a href=\"https:\/\/signmycode.com\/resources\/step-wise-guide-token-based-jar-signing-in-mac-os-x-environments\">Step-wise Guide: Token-Based JAR Signing in MAC OS X Environments<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 6: Test Your Application<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Install your signed app on a macOS system.<\/strong> This is your real-world test. If everything went right, macOS will recognise your app as safe and trusted.<\/li>\n\n\n\n<li><strong>Open the app<\/strong>. No scary red warnings. No \u201cThis app can\u2019t be opened\u201d pop-ups. Just a clean, professional launch, the kind that instantly builds trust with users.<\/li>\n\n\n\n<li><strong>Run through the features.<\/strong> Click every button. Open every window. Push it like a real user would. You\u2019re not just testing functionality, you\u2019re testing confidence.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Why Code Signing Isn\u2019t Optional? If you\u2019ve ever tried running an unsigned app on macOS, you already know how brutal the experience is. You double-click your .app file, and that dreaded message appears: \u201cThis app can\u2019t be opened because it\u2019s from an unidentified developer.\u201d And that\u2019s it. Your user instantly loses trust. Your credibility? Gone.&hellip; <a class=\"more-link\" href=\"https:\/\/signmycode.com\/resources\/how-to-code-signing-an-electron-js-app-for-macos\">Read More <span class=\"screen-reader-text\">How to Code Signing an Electron.js App for macOS?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4622,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[353],"tags":[633,632,631],"class_list":["post-4618","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-macos-code-signing","tag-building-a-macos-app-with-electron","tag-code-sign-and-notarization-ios-app","tag-code-sign-electron-js-app-for-macos","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Code Sign an Electron.js App for macOS?<\/title>\n<meta name=\"description\" content=\"Follow the step by step tutorial on code signing an Electron application for macOS.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/signmycode.com\/resources\/how-to-code-signing-an-electron-js-app-for-macos\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Code Sign an Electron.js App for macOS?\" \/>\n<meta property=\"og:description\" content=\"Follow the step by step tutorial on code signing an Electron application for macOS.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/signmycode.com\/resources\/how-to-code-signing-an-electron-js-app-for-macos\" \/>\n<meta property=\"og:site_name\" content=\"SignMyCode - 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