Think freely. Build with everything in view.
Gather references, organize ideas, sketch flowsand work with agents — all in the same canvas.
Product agentTip: Gather the references on the canvas and build from them.
› Turn the brief into a clear plan for the first version.
✓ Reading the initial idea and connected references.
Design agentTip: Gather the references on the canvas and build from them.
› Use both images and the visual direction note to design the experience.
✓ Reading the initial idea and connected references.
Development agentTip: Gather the references on the canvas and build from them.
› Build the page and prepare the deliverable file for review.
✓ Reading the initial idea and connected references.
THINK FREELY
Build with everything in view.
Your space to think, organize, and build with agents.
landing-page.tsxready for review
A place to think.
And make it happen.
Bring context together, hand off work, and keep an eye on your agents.
All connected, in the same project.
Agents that collaborate
One delegates.
The other moves it forward.
Connect several agents to work as a team. They ask each other questions, hand off tasks, and review each other's work. You follow the conversation and decide what's next.
The whole project in view
Context stays close
to whoever's building.
Place references, files, and agents on the canvas. Connect what each one needs and see how the pieces of your project relate.
Shared notes
Write it once.
Give the team context.
Turn an idea into a briefing. Connect the note to your agents so they read the instructions and log decisions in the same place.
Project direction
Build the landing page's features section, using the connected references.
Clear copy. Real demos.
Connected browser
Ask for an action.
Watch the page respond.
The agent opens sites, types, clicks, and looks things up in the canvas's browser. Use it to research references and check what's being built.
Visual thinking
Sketch out
how the work moves.
Map out steps, decisions, and review paths. The plan stays in view, right next to the agents carrying it out.
Multiple projects
Every project,
its own space.
Keep agents, references, and ideas organized by project. On an infinite canvas, there's always room for the next step.
Visual references
Show what
you have in mind.
Gather images and screenshots to explore a direction. Connect the references to your agent and use the same context to discuss the idea.
Every agent does its part.
You watch the project move forward.
Connect agents to research, analyze, and review together.
Follow the exchanges, decisions, and results on the canvas.
Start for free.
Scale up when you need to.
Your first project already has everything it needs to take off.
Castor Pro gives you more room to keep building.
Free
To get your first idea off the ground.
US$0
Everything to think and build:
- 1 project
- Up to 5 agents per project
- Infinite canvas to organize your ideas
- Notes, files, and references
- Browser inside the canvas
- Collaboration between agents
Castor Pro
To make room for all your ideas.
US$9.90/ month
Everything in Free, plus:
- Unlimited projects
- Unlimited agents
- Priority support