Skip to main content

Co-Star

NASA ephemeris data, brutal one-line notifications and a design language everyone copied. Astrology delivered entirely deadpan.

Opens in a new tab. We do not control this site and it may have changed since we catalogued it.

How to get the most from it

Co-Star sits in Astrology & Vibes under Learn, filed as a minute.

  • Give it one round. There is nothing to finish and nothing lost by leaving.
  • Open it on your phone; that is where it works best.
  • It works with the sound off, so it is fine on a train or in a quiet office.
  • Expect to create an account before you get far.
  • Go in expecting something funny and weird.

About this category: Birth charts, transits and horoscopes. Included as culture rather than as physics, and enjoyable on exactly those terms.

Good for

  • A one-round break between tasks
  • A reliable laugh
  • Seeing the internet at its least explicable
  • A quiet break at your desk
  • Killing time on your phone

Co-Star: quick answers

Is Co-Star free?

Yes. Co-Star is free to use, though it asks you to sign up.

Do I need an account to use Co-Star?

Yes. Co-Star asks you to create an account before you get far.

Does Co-Star work on a phone?

Yes — Co-Star is at its best on a phone.

Is Co-Star safe for work?

Yes, we file it as safe for work. It also works muted.

How long does Co-Star take?

We file it as "A minute": One quick round, then you can leave.

More in Astrology & Vibes

All 14 in Astrology & Vibes

Same mood: funny

All funny sites
  • Click the cookie, buy grandmas, buy portals, accidentally summon something. The game that turned incrementals into a genre.

  • Chrome, flames and bevelled gradients — the 2003 logo generator, still online and still producing exactly that.

  • One button that adds unicorns and rainbows to any web page, solving a problem that has never once been reported.

  • Upload any file and receive a genuinely corrupted version back. Built for missing deadlines, used mostly for art.

Keep exploring

Have a site of your own? Suggest it for Detour or browse the AltFTool backlinks hub.