Annotate any webpage.
Collaborate with your team.

plant your garden of ideas 🌱

A Chrome extension that lets your team leave comments directly on any website. Perfect for product reviews, research, education, and more.

How it works

Three simple steps to start annotating the web.

en.wikipedia.org/wiki/Photosynthesis

Photosynthesis

Photosynthesis is a biological process used by many cellular organisms to convert light energy into chemical energy.

The process occurs primarily in the chloroplasts of plant cells.

The overall equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Stay in the loop

Get notified when teammates mention you. Click through to jump straight to the annotation on the page.

@mentions

Tag teammates in annotations to get their attention.

Real-time badges

See unread counts on the Leafy bubble — never miss a mention.

Deep links

Click a notification to jump directly to the comment on the page.

Leafy
Notifications
Feed
Gardens

Sarah Chen mentioned you

Product Team·app.example.com·2m ago

Alex Rivera mentioned you

Product Team·app.example.com·15m ago

Prof. Chen mentioned you

Bio 101·en.wikipedia.org·1h ago

Dana Park mentioned you

Newsroom·news.example.com·3h ago
Leafy
Notifications
Feed
Gardens
Search annotations...

This should say 'Save & Continue'

"Save Changes" button

10m ago

Contrast ratio too low on this button

"Save Changes" button

8m ago

Add email validation here

Email input

5m ago

Your annotation feed

Browse all your team's annotations in one place, grouped by page. Search by text, author, or site.

Search everything

Find any annotation by text, author name, or website.

Grouped by page

Annotations are organized by URL so you see context at a glance.

Jump to any annotation

Click to open the page and scroll directly to the comment.

Organize your Gardens

Create separate spaces for each team, project, or classroom. Annotations are scoped to the Garden they belong to.

Multiple Gardens

Keep product feedback separate from research notes or class annotations.

Invite teammates

Add people by email. They'll see your annotations as soon as they install Leafy.

Switch contexts instantly

Switch between Gardens to see different sets of annotations on the same page.

Leafy
Notifications
Feed
Gardens

Engineering Team

15 members

Personal

1 members

Research

4 members

SAT preparation

8 members

Create Garden
Invite

Built for everyone

See how different teams use Leafy to collaborate directly on the web.

1

Highlight anything and save a study note

You
medium.com/ml-guide

Understanding Machine Learning

By Alex Thompson· March 15, 2026

Machine learning is a subset of AI that enables systems to learn from experience without being explicitly programmed.

L(θ) = −∑ yₖ log(hθ(xₖ))

The three main types are supervised, unsupervised, and reinforcement learning.

Start with simple models and gradually increase complexity.

You
2

Add a page wide note, for general notes on the page

You
medium.com/ml-guide

Understanding Machine Learning

By Alex Thompson· March 15, 2026

Machine learning is a subset of AI that enables systems to learn from experience without being explicitly programmed.

L(θ) = −∑ yₖ log(hθ(xₖ))

The three main types are supervised, unsupervised, and reinforcement learning.

Start with simple models and gradually increase complexity.

You
3

Open the feed to browse your notes

You
medium.com/ml-guide

Understanding Machine Learning

By Alex Thompson· March 15, 2026

Machine learning is a subset of AI that enables systems to learn from experience without being explicitly programmed.

L(θ) = −∑ yₖ log(hθ(xₖ))

The three main types are supervised, unsupervised, and reinforcement learning.

Start with simple models and gradually increase complexity.

You
4

Edit a previous annotation to add detail

You
medium.com/ml-guide

Understanding Machine Learning

By Alex Thompson· March 15, 2026

Machine learning is a subset of AI that enables systems to learn from experience without being explicitly programmed.

L(θ) = −∑ yₖ log(hθ(xₖ))

The three main types are supervised, unsupervised, and reinforcement learning.

Start with simple models and gradually increase complexity.

You
Roadmap

More exciting features on their way

Here's what we've shipped, and what's coming next.

  • Team collaboration with shared gardens
  • In-extension notifications for @mentions
  • Rich text support (bold, italic, strikethrough, code, links)
  • Threaded replies on annotations
  • Deep links to jump to a specific annotation
  • Slack, Teams & Google Chat notifications
  • Email notifications for mentions
  • Dashboard view for all your annotations