Listen to Aeon
Turn any aeon.co essay into audio. Open the piece in Chrome, click CastReader, and listen from the standfirst through the last paragraph — with paragraph highlighting. Aeon is 100% free, so every essay is fully listenable.
Why Listen to Aeon with CastReader?
Aeon essays are 3,000–6,000 words of philosophy, science, and culture. Audio makes the argument followable while walking.
Full Essay
Standfirst, Byline, Body
CastReader reads the standfirst (Aeon's italic intro paragraph), the byline, and the full essay in order. Footnotes and section breaks are respected. Your audio starts with 'By [Author]' and ends at the last paragraph.
No Paywall
Every Essay Is Free
Aeon is donation-supported and runs no paywall. Every essay, every Idea, every Video transcript has full text in the DOM. CastReader reads all of it — no 'subscribe to continue' ever cuts the audio short.
Clean Audio
Skips Donation Rails
Aeon.co runs donation appeals and 'Syndicate this Essay' widgets in sidebars and at article ends. CastReader reads only the essay body and stops at the last paragraph — not at the 'Support Aeon' call-to-action.
100% Free
For Reading on Walks
No signup, no quota. A typical Aeon essay is 35 minutes at 1.5x — exactly the length of a walk around a park with an argument that needs 35 minutes.
Frequently Asked Questions
Everything about listening to Aeon with CastReader
How do I listen to an Aeon essay?
Open the piece on aeon.co in Chrome (URLs look like /essays/the-title or /ideas/the-title). Click the CastReader icon. It reads the standfirst, byline, and full body.
Are Aeon essays really fully free?
Yes. Aeon runs on donations, not subscriptions. Every essay is free to read in full — and every essay is fully listenable with CastReader. There's no metered-access wall to navigate.
Does it handle Ideas (the shorter pieces)?
Yes. Aeon Ideas are 1,000–2,000-word shorter pieces that live at aeon.co/ideas. They read the same way as full essays. An Idea is about 10 minutes at 1.5x.
What about Aeon Videos?
Videos are audio/video content — CastReader is for the written word. Most Aeon Videos have written introductions and transcripts on the same page; CastReader reads those introductions, not the video's soundtrack.
Does it handle footnotes?
Yes. Aeon footnotes are inline links to further reading. CastReader reads the essay body smoothly and skips the numbered footnote markers so the audio isn't cluttered with '1, 2, 3.' The footnote text at the end of the article is preserved if you want to listen to it.
What gets skipped?
'Support Aeon' donation prompts, 'Syndicate this Essay' widgets, author bio boxes (already read at the top via byline), 'You Might Also Like' rails. Only the essay itself reads.
Can I adjust reading speed?
Yes. 0.5x through 3x. Aeon essays often want 1.4x–1.6x because the arguments are dense enough that you want to follow, not skim by ear.
Is it free? Any limits?
Completely free with no page or character limits. No account needed. CastReader is a free browser extension for Chrome and Edge.
Start Listening to Aeon
Completely free. No signup. No limits. Install CastReader and open any Aeon essay.