Listen to Gemini Responses
A small ๐ Listen button appears next to every Google Gemini response. Click to hear just that answer โ no copying, no switching apps. Auto language detection, natural voices.
A ๐ Listen button appears next to every AI response โ click to hear it.
How CastReader Works with Gemini
The only Chrome extension that adds a Listen button to every Gemini response
Per-Response
One Button Per Gemini Answer
Every response from Gemini gets its own ๐ Listen button. Click it to hear only that answer โ not the entire conversation. Perfect for long research responses you'd rather listen to than read.
Shadow DOM
Works Through Gemini's Shadow DOM
Gemini uses Shadow DOM to render chat content โ most TTS extensions can't read it. CastReader has dedicated deep-query support for Gemini's DOM structure, so the button appears reliably on every response.
Natural Voices
Auto Language Detection
CastReader detects the response language automatically. Whether Gemini answers in English, Chinese, Japanese, or any of 40+ languages, you get a matching natural voice โ powered by the Kokoro TTS model.
Frequently Asked Questions
Everything about listening to Google Gemini with CastReader
How do I listen to a Gemini response?
Install CastReader, go to gemini.google.com, and a ๐ Listen button will appear next to every Gemini response automatically. Click it to start listening to just that response.
Why do other TTS extensions fail on Gemini?
Gemini renders chat content inside Shadow DOM, which is invisible to normal querySelector calls. CastReader uses deep Shadow DOM traversal specifically for Gemini, so it reliably reads every response.
Does it work with Gemini Advanced and Gemini 2.0?
Yes. CastReader extracts from the rendered page, so it works with all Gemini model versions including Advanced, 2.0, and Flash.
Does it read code blocks?
Code blocks are skipped by default so you hear the explanation, not the syntax. Technical Gemini responses become much easier to listen to.
Is it free?
CastReader is completely free โ no API key, no usage limits, no account required.
Can I use it on other AI platforms too?
Yes. CastReader also supports ChatGPT, Claude, DeepSeek, Kimi, and Doubao with dedicated extractors for each platform.
Does this work on Google Gemini Advanced?
Yes. CastReader works on the entire gemini.google.com domain, including Gemini Advanced (Gemini 2.0 Pro). The ๐ button appears next to every response regardless of which model you are using.
Can I use it as a Chrome read aloud extension for Gemini?
Yes. CastReader is a free Chrome extension that adds a Listen button to every Gemini response. Unlike generic Chrome read-aloud extensions that read the entire page, CastReader lets you pick a single Gemini reply and skip system instructions or your own prompts.