Listen to Zenn Articles
Turn Zenn tech articles and Books into audio. CastReader skips code blocks and reads the explanations aloud.
Why Listen to Zenn with CastReader?
Absorb tech knowledge through audio
Smart Extraction
Article & Book Text Only
Zenn pages include likes, comments, author info, and topic tags. CastReader extracts only the article or Book chapter text.
Code Aware
Smart Code Block Skipping
Zenn articles are rich with code blocks. CastReader detects and skips them, reading only the explanations.
Natural Voices
Technical Terms Handled
CastReader's AI handles Next.js, TypeScript, Rust, and other tech terms naturally in mixed Japanese-English content.
100% Free
Free Learning for Developers
Zenn is free. CastReader is free. Turn your commute into productive learning time.
Frequently Asked Questions
About listening to Zenn articles
How do I listen to Zenn articles?
Install CastReader from the Chrome Web Store, open any Zenn article, and click the CastReader icon.
Does it work with Zenn Books?
Yes. CastReader works on each Zenn Book chapter page, extracting and reading the chapter text.
Is it free?
Yes, completely free with no limits and no signup required.
Start Listening Now
Completely free. No signup. No limits. Install and start listening.