Grow software
from a sentence.

No code. No setup. Just describe it.

Press Enter to begin building, or Shift and Enter for a new line.
The builder will use them as visual evidence.
Automatic. Standard cost. Uses lower-cost models for focused sites and edits, and quality models for visual or complex app work.

Try a starting point

How it works

One conversation.
A product you can ship.

01

Say what you need

Describe the product as naturally as you would explain it to a teammate.

02

Watch it become real

Files stream in while a working preview assembles beside the conversation.

03

Refine and publish

Keep chatting, edit the code directly, restore a version, then share the result.

Open preview

Build something real.
Start for free.

Terrestrial is free while it grows. No card, no API key, and no setup between your idea and a working app.

$0during preview
  • Terrestrial-managed AI—no provider key needed
  • React, live visual editing, and version restore
  • Built-in auth, data, storage, and functions
  • Collaboration, GitHub sync, and publishing
Begin with a sentence