Uses
One workspace · Safety on
One place for what you make with AI. Think it through, draw it, draft a small app, then keep a record if it matters. The content rules stay on.
- ChatAsk, think out loud, get a plain answer as it is written. The conversation stays in this browser, and one click deletes it. Checking
- PicturesOne sentence becomes one picture you can open and save. Real people and sexual content are refused. Checking
- VideoShort clips cost far more than pictures, so this is on the list and not on the site. Nothing here pretends otherwise. Planned
- BuildDescribe a small app. The model drafts one HTML file, and it runs sealed in a frame beside its own code. Checking
- AgentsSoftware that works on its own needs tools and limits we have not built yet. Labelled planned until it exists. Planned
- AnchorA wallet can put the hash of what you made on Robinhood Chain, with versions and a second wallet's attestation. Practice mode
Private, with its limits
Your work stays near you. Here is where it stops.
Calling something private means little without its edges, so these are ours: what stays on your device, what has to travel, and what cannot be taken back.
Stored in this browser
Conversations, pictures and drafts sit in your browser's own storage. This site keeps no copy and has no account to attach one to.
A message does leave
To get an answer, what you send goes through our server to the model provider. We write none of it down. The provider's own retention rules are theirs, and we cannot change them.
No sign-in
No email and no password. A wallet comes in only if you want to anchor something on chain, and it is never needed to chat.
Delete is one click
One click removes a chat from this browser, another clears everything. It cannot recall what a provider already received, or a hash you put on chain.
Build
CheckingA small app from one sentence.
Say what it should do. The model drafts one file, the sandbox runs it next to the code, and you decide what happens next. It is a draft: read it before you trust it.
Start buildingOne file, nothing else
A draft is a single HTML file with its styles and script inside. Read it, keep it, open it anywhere.
Runs sealed
The frame allows scripts and nothing else: another origin, no storage, no network, no reach into this page or your wallet.
Code beside the result
Switch between the source and the running app, edit by hand, and run it again. It is a draft, so read it first.
Change it in words
Ask for a change and the model rewrites the file. Your earlier draft stays until you replace it.
Start from a sample
Four small apps we wrote ship with the site. They run without a key, so you can try the sandbox first.
Hosting comes later
Publishing at a public address and databases are planned. For now, download the file and host it yourself.
Origin Book · Robinhood Chain
Practice modeKeep a record of what you made.
Optional, and separate from everything above. Choose a file, and a wallet writes its hash on chain with a version history. The contract holds no money, has no owner, and costs only gas.
A hash, not your file
Your browser computes the hash and the file stays with you. Any label or link you add is public and stays on chain for good.
A second wallet attests
Another wallet can say it has seen a version. A wallet that was ever the author or an editor of that record cannot.
It proves less than it sounds
A record shows this wallet published this hash at this time. It does not show who made the work, or that the work is original.
Start
Begin with a line of text.
Nothing to sign up for. A wallet is only for the on-chain part.




