Listen to Your Gmail Emails
CastReader adds a Listen button next to every email subject. One click and it reads the email aloud with a natural AI voice — paragraph by paragraph, with highlighting that follows along.
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Click "Listen" next to any email subject — paragraph highlighting follows along
How It Works with Gmail
CastReader detects when you open an email and adds a Listen button automatically
Auto Detection
Listen Button Appears Automatically
Open any email in Gmail and a small Listen button appears next to the subject line. No menus, no right-clicking, no toolbar buttons to find. It is right there where you are already looking — next to the email title.
Smart Extraction
Reads Only the Email Body
CastReader extracts just the email content — no navigation, no sidebar, no signature blocks, no quoted reply chains. Long email threads? It reads only the current message, skipping the quoted history below.
Follow Along
Paragraph Highlighting
Each paragraph highlights as it is read aloud. Click any paragraph to jump there. The page auto-scrolls to keep up. You always know exactly where the reading is.
Email Switching
Switches When You Switch
Navigate to another email and the Listen button follows. Gmail is a single-page app — CastReader detects navigation changes and re-mounts the button on the new email subject line automatically.
Gmail Text to Speech: What You Need to Know
Gmail does not have a built-in read-aloud feature. Google added smart features like Smart Reply, nudges, and AI summaries — but never text to speech. If you want to hear your emails read aloud, you need a browser extension.
Most read-page-aloud extensions struggle with Gmail because it is a complex single-page app. The DOM changes constantly as you navigate between emails, and the actual email body is buried inside layers of nested divs. Generic page readers end up reading the entire Gmail interface — navigation, labels, sidebar, and all — instead of just the email content.
CastReader solves this with targeted webmail detection. When it recognizes Gmail, it identifies the email subject line and inserts a Listen button right next to it. When you click Listen, it extracts only the email body text — skipping quoted replies, signatures, and Gmail interface chrome. The extraction uses the same Visual Zone algorithm that powers CastReader content extraction on 10,000+ websites, tuned specifically for email content patterns.
The Listen button follows Gmail SPA navigation. When you open a new email, the button re-appears on the new subject. When you go back to the inbox, it disappears. During playback, the button shows Listening so you know it is working. If Gmail re-renders the heading element (which it does during playback), CastReader preserves the playback state instead of creating duplicate buttons.
CastReader also works with Outlook.com, QQ Mail, and auto-detects other webmail platforms using ARIA roles and DOM heuristics. One extension covers all your email reading needs.
Frequently Asked Questions
Everything about listening to Gmail emails
Does Gmail have a built-in read aloud feature?
No. Gmail has no native text-to-speech feature. Google added AI summaries and Smart Reply but never built-in read aloud. You need a Chrome extension like CastReader to listen to Gmail emails.
How do I read Gmail emails aloud?
Install CastReader from the Chrome Web Store. Open any email in Gmail — a Listen button appears next to the subject line. Click it. The email starts reading aloud with paragraph highlighting.
Does it read the whole page or just the email?
Just the email body. CastReader extracts only the email content, skipping Gmail interface, navigation, sidebar, and quoted reply history. You hear the actual message, not the chrome around it.
Does it work with email threads?
Yes. When you open an email in a thread, CastReader reads the currently visible email body. It skips the quoted reply chains and focuses on the actual new content.
What about Gmail on mobile?
CastReader is a Chrome/Edge extension that works on desktop. For mobile, you can use your phone built-in accessibility features — iOS has Speak Screen and Android has Select to Speak.
Does it work with other email providers?
Yes. CastReader also supports Outlook.com, QQ Mail, and auto-detects other webmail platforms. The same extension works across all your email accounts.
Is CastReader free?
Yes, 100% free. No signup, no subscription, no limits. Install and start listening to your emails immediately.
What languages does it support?
CastReader supports 40+ languages with natural AI voices. It auto-detects the language of your email content and uses the appropriate voice.
Does it work with Google Workspace?
Yes. CastReader works on any mail.google.com domain, including Google Workspace accounts for business and education.
Start Listening Now
Completely free. No signup. No limits. Install and start listening.