Research is more than a paper.

Global Journal Club gives scientists a place to ask questions, share insights, and build on the research they read.

A published paper should start a conversation, not end it.

Add to Chrome ✓ Extension installed — open any paper to see its discussion.

FreeWorks in Chrome and BraveWe never sell your data

Fig. 1
  1. Open the sidebar on any paper
  2. Share it to your group’s library
  3. Ask Synapse AI a question
  4. The answer is posted for your group

Moving research forward, together.

Global Journal Club gives scientists a place to ask questions, share insights, exchange alternative explanations, and build on the research they read.

Ask the author

Send questions with one click — no searching or drafting emails. All answers are publicly posted.

Discuss together

Share papers with your lab, collaborators, or research community — you decide who sees your posts.

Get credit for your insights (your JC Impact score)

Share your knowledge and experience to grow your scientific profile.

Take notes

Easily take notes while you read. When you’re on the paper again, you’ll be reminded of your notes.

In the extension

Ask Synapse AI beta

When you share a paper with your group, ask Synapse AI for its main claim and the strongest alternative hypothesis, or ask your own question.

Synapse AI@synapse

Heterochronic heart transplants in mice show the graft’s epigenetic age shifting toward the recipient’s.

Alternative hypothesis: the shift reflects cell composition. Recipient immune cells infiltrate the graft and carry the recipient’s age…

For labs and reading groups

Begin your journal club today.

Give your lab or reading group its own private space for papers.

  • Members-only comments on any paper
  • A shared library of papers to read
  • Invite people with a link — you approve who joins
  • An email digest of your group’s activity
Browse public groups

Ask a question or share an insight on any paper

Paste a link, DOI, or title. Journal sites, PubMed, bioRxiv, medRxiv and arXiv all work.

Questions

Is Global Journal Club free?

Yes. The website and the Chrome extension are both free.

Do I need the extension?

No. You can read, comment, run groups and ask authors questions right here on the website, from any device. The extension is for when you’re reading on a computer: it lets you know when a paper you’re reading has comments or groups discussing it. It also lets you view the discussion alongside the paper and keep private notes.

Who can see what I post?

You choose each time. Public comments can be read by anyone. Comments posted to a group are visible only to that group’s members. Notes in the extension are visible only to you.

What’s the number next to my profile picture?

That’s your JC Impact: a running tally of what you’ve added to public discussions. A public comment or reply earns 1 point, plus 1 if it includes an image and 2 if it’s the first comment on that paper. Each upvote from someone else earns 1 more (the first 10 on any comment count). Group-only comments and private notes don’t earn points, and deleting a comment takes its points back. It’s the same number on the website and in the extension, and it shows on your profile.

Can I post without an account?

Yes — on the website you can post a public comment or reply as a guest, under an automatically chosen pseudonym. With a free account you can post under your own name, join groups and get notified when someone replies. Also, only logged-in users can send questions or comments to the author.

Which papers and browsers does it work with?

Any paper with a DOI, plus PubMed, PubMed Central, bioRxiv, medRxiv and arXiv. The website works in any browser. The extension works in Google Chrome or Brave on a computer.

What happens to my data?

We never sell your data. The extension reads the page you’re on only to work out which paper it is. See our privacy policy for the details.

Built by scientists, for scientists

Discover insights beyond what’s published.

Add to Chrome