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CastReader

Reads & explains any webpage, Kindle & PDF aloud

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CastReader is a Chrome extension that reads web articles, Kindle Cloud Reader books, PDFs, Notion and more aloud in natural AI voices across 40+ languages, with real-time word highlighting. Its Read & Explain mode does more than narrate — it explains the text in plain language as it reads, marks up the key passages like a teacher with a highlighter, and shows synced subtitles. It's the only TTS tool that works on Kindle Cloud Reader. Free to start.

Example Image
Example Image
Example Image
Example Image
Example Image
Example Image
Example Image

Features

Works on Kindle Cloud Reader — no other TTS tool does

Read & Explain: explains the text in plain language as it reads

Real-time word + paragraph highlighting synced to the voice

Reads web pages, PDFs, Notion & ChatGPT aloud

40+ languages, natural AI voices

Use Cases

Read long articles and newsletters hands-free while doing other things

Get through Kindle books faster with narration + plain-language explanations

Study dense material with Explain mode breaking it down as you listen

Practice a language by listening and reading along in 40+ languages

Make any web content accessible as audio

Comments

Hey 👋 I'm Vin, a solo dev and the maker of CastReader. It started with a simple frustration: I wanted to "read" long articles and Kindle books while walking or doing chores, but every TTS tool either couldn't touch Kindle Cloud Reader or just droned through the text without helping me actually understand it. So I built CastReader to do both — read anything aloud in natural voices across 40+ languages, and with Read & Explain, break down the hard parts in plain language as it goes, like a teacher reading over your shoulder with a highlighter. Free to start. Would love your honest feedback — especially on the Explain mode and what you'd want it to read next.

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Comments

Hey 👋 I'm Vin, a solo dev and the maker of CastReader. It started with a simple frustration: I wanted to "read" long articles and Kindle books while walking or doing chores, but every TTS tool either couldn't touch Kindle Cloud Reader or just droned through the text without helping me actually understand it. So I built CastReader to do both — read anything aloud in natural voices across 40+ languages, and with Read & Explain, break down the hard parts in plain language as it goes, like a teacher reading over your shoulder with a highlighter. Free to start. Would love your honest feedback — especially on the Explain mode and what you'd want it to read next.