Blabbertree
A new kind of platform

Annotate
the World

Highlight any text on any document. Start a conversation right there. Watch it branch into a tree. No original content. No algorithm. Just real people reacting to real things.

Three steps. No account required.

1

Bring a document

Paste text, drop a URL, or upload a PDF. Anything you want people to react to.

2

Highlight and annotate

Select any sentence or phrase. Click "Annotate this." Leave your take — a question, support, opposition, or context.

3

Watch the tree grow

Every comment can branch. Replies branch off replies. The conversation grows like a tree, anchored to the exact text.

One platform. Every conversation.

Teams

For Your People

Your team finds something on the web. You want to discuss a specific part of it. Right now, that's an email with a screenshot. It shouldn't be.

  • Annotate any web page together
  • Private team groves
  • Competitor analysis, research, reviews
  • Contracts, proposals, specs
Social

For Everyone

A social platform with zero original content. You don't post — you react. Every conversation is anchored to something real.

  • Annotate news, articles, anything
  • Build groves around topics you care about
  • Follow annotators whose thinking you respect
  • Discovery by topic, location, or community

What if feedback isn't a private activity?

Not a comment section

Comment sections live at the bottom of a page. Nobody reads them. Blabbertree annotations are anchored to the exact text — the conversation happens where it matters.

Not social media

Social media is people performing for strangers. Blabbertree is people reacting to reality. No selfies, no hot takes, no algorithm. Just the document and the tree.

Not a review tool

Word and Google Docs let 3 people comment on a shared file. Blabbertree lets anyone affected by a document participate. Same gesture, different answer to "who gets a voice?"

Not curated for you

No algorithm decides what you see. You choose by topic, by community, by location, by the people you trust. Your context determines your feed — not ours.

See it in action

Browse public groves, watch video annotations unfold, or blab on real Montana legislation. No signup required.

Explore Groves