Everyone uses AI now.
Nobody can share the result.

Your team already uses AI to build dashboards, tools, and prototypes. But going from “AI made it” to “here’s the link” is still a mess.
Sandcastle is the missing piece.

Works with ChatGPT, Claude, Gemini, Copilot, Cursor — any AI tool

Sound familiar?

AI can build anything now.
Getting it online is still painful.

💻

“I asked AI to deploy it, but it told me I need a server.”

Set up an EC2 instance, install Node, configure nginx… at that point I’m a developer.

🌐

“My project is running, but only on an IP address.”

Sharing 143.198.47.102:3000 with my boss isn’t exactly professional. I tried a CNAME but gave up.

🔓

“Anyone with the link can see it. I can’t add a password.”

It’s an internal tool with real data. I need to share it with 5 people, not the whole internet.

🔄

“Every small change means restarting everything.”

Changed a button color. Now I’m re-uploading files, restarting the server, clearing cache… for a CSS change.

Sandcastle makes this disappear.

No servers. No IP addresses. No config files. Your AI builds something, Sandcastle gives it a real URL, instantly.

1 AI builds your idea
2 One click to Sandcastle
3 Share a real link
Team prototyping

Every department uses AI now.
Give them all a place to ship.

Your PM, your designer, your sales team — they’re all using AI to build things. They just can’t get those things in front of people. Until now.

📊
Product
Prototype feature ideas and share with the team before sprint planning — no developer ticket needed.
“Build a dashboard showing our activation funnel by channel”
🎨
Design
Ship interactive mockups clients can tap through on their phones, not static screenshots.
“Mock up the new onboarding flow with working transitions”
💰
Sales
Build custom calculators and demo tools for live prospect meetings.
“Make an ROI calculator for the enterprise pitch on Thursday”
📣
Marketing
Launch landing pages, collect signups, and test messaging before committing to a full campaign.
“Create a landing page to test our new positioning with early users”
🔬
Research
Build surveys, data visualizations, and interactive reports to share with stakeholders.
“Turn this CSV into an interactive chart I can share with the board”
👨‍💻
Engineering
Spin up quick PoCs and internal tools without the ceremony of repos, CI/CD, and infra.
“Deploy this API status page so the team can check it”

Your team’s ideas, all in one place.

Every project deployed to Sandcastle shows up in your team gallery. Browse, discover, fork, and build on each other’s work.

⚔ Team Gallery
All departments · Last 7 days
Q3 Sales Dashboard
Sarah from Product · 2h ago
dashboard3 forks
Pricing Calculator
James from Sales · 1d ago
toollive data
Launch Feedback Form
Priya from Marketing · 3d ago
142 responses

Simple on the outside.
Powerful where it counts.

You don’t need to understand any of this. But it’s all working for you.

🔗

Real URLs, instantly

Every project gets a clean, shareable link. No IP addresses, no port numbers, no DNS headaches. HTTPS included.

💾

Built-in data store

Collect form submissions, votes, signups — without setting up a database. Your projects can remember things.

⚡

Real-time editing

Changes appear instantly as you iterate. Ask AI for a tweak, see it live in under a second. No re-uploading, no restarts.

🔒

Protected sharing

Add a password, limit to your team, or open to the world. You control who sees what. No more “anyone with the link” anxiety.

🔅

Fork and remix

See a project you like? Fork it with one click and make it yours. Grab the code locally if you want to go deeper.

🤖

Any AI, any language

ChatGPT, Claude, Gemini, Copilot, Cursor, or your local model. JavaScript, Python, Go, Rust, or plain HTML. All welcome.

Free to start. No credit card.

Build something in the next 30 seconds. Upgrade when your team is hooked.

Personal
Free
Try ideas, build personal projects
  • 3 live projects
  • 24-hour link duration
  • Basic data store
  • Any AI tool
Popular
Pro
$19 /mo
For freelancers and small teams
  • 25 live projects
  • 30-day links
  • 1 GB data store
  • Real-time editing
  • Custom link names
  • Password protection
Team
$49 /mo
For companies and agencies
  • Unlimited projects
  • No time limits
  • 10 GB data store
  • Team gallery
  • Company sign-in (SSO)
  • Fork and remix
  • Custom domains
  • Priority support

Your team is already using AI.
Give them somewhere to ship.

Every idea deserves a link. Stop losing prototypes in chat threads and screenshots. Start sharing things that actually work.