Point at any part of the page and ask for the change.
Comment on any element or press Cmd+J, and AI edits the live page in front of you. Keep or revert with one click.
Cmd+J to comment on the page
Software should be shapeable.
One HTML file that can edit itself and save changes back into its own source.
- no database
- no backend
- no build
- no deploy
Change the page and it's live.
Add a column or drag a row around, and every change syncs live to your team.
Each save strips out the editing tools, so visitors only see a clean, fast page.
Owner-only edit controls
Instant publish
What is a malleable document?
A malleable document is a regular HTML file with one extra ability: it edits and saves itself in place, so your team can shape the live app directly.
- Make one with AI or pick a free template.
- One ClayJS script tag adds page editing, a visual CMS, and owner controls, each of them optional, so the document can stay lightweight.
- No build, deploy, or database: on Hyperclay, saves go live right away and sync with teammates.
- An open format, so you own the file: download your HTML anytime, or run documents offline with Hyperclay Local and HTML Clay.
Shape your document with code, its own interface, AI, a built-in visual CMS, or offline on disk
A sidebar CMS generated from your page.
Open the CMS panel and Hyperclay builds an editing form from your document's content. Typing in a field updates the page beside it live.
Try the CMS demo →
In-place image crop
One-click AI CMS setup
Download your document and run it anywhere.
Double-click your downloaded file on your laptop and it opens, edits, and saves back to itself completely offline.
The interface is not a
picture of the software.
It is the software.
- Browsers turn HTML into a live tree of elements called the DOM.
- Most web apps treat the DOM as a temporary picture of state stored somewhere else.
- Malleable documents treat the document itself as the truth.
How saving works
Because the page itself holds the app and its state, saving the live document is all it takes to publish a change.
One HTML file. Your application and its state live together in a single file.
Edit in place. You shape the live DOM directly in the browser, right on the page.
Persist clean HTML. Saving copies the live DOM, strips owner-only editing controls, and writes clean HTML as the next version while your tab stays open.
4 layers of plumbing, removed
Database
Migrate a schema
Server
Coordinate backend
JSON API
Update an endpoint
Build & Deploy
Rebuild bundle & wait
Browser View
The whole app
Built into every document
Tailwind CSS, zero build
- Write Tailwind classes straight in your HTML with no build step.
- Edit source directly in browser DevTools or the built-in code editor (paid plan).
Version history & guards
- Restore in one click to the version created on every save.
- Overwrite guards catch stale tabs before they clobber newer changes.
Collections & dashboards
- Public submission form when you mark a folder as a Collection.
- Private owner dashboard that updates live out of the box.
Multi-tenant documents
- Turn on signups for any public document.
- On paid plans, every user who signs up gets their own editable copy on its own subdomain.
Fork & upgrade templates
- Copy any public document with one click to make it yours.
- Pull new template versions when an author ships an update without losing your own data.
Open public-domain spec
- Open specification with conformance tests.
- Independent hosts so your documents outlive any single vendor.
Share one link, broadcast live updates, and query any page as JSON
Let a friend edit from a secret link, with no account.
Generate a share link or QR code that grants editing access right away, and revoke it anytime. Everyone on the document sees saved changes appear live with focus and inputs intact.
Revocable link & QR code
Live multi-user sync
Update your site from your phone in seconds.
Because the editor lives inside the document itself, you can open your site on your phone, update a line, and save.
Works in mobile browsers
Free you.hyperclay.com namespace
Custom domains + auto SSL
Change a number on the page and its JSON data updates.
Describe what on your page is data with a small rules tag, and Hyperclay publishes clean JSON at a stable URL on every save.
Public /_/api JSON endpoint
No separate database
Share one live page instead of trading attachments with your team.
Give everyone one live document to keep open instead of trading emails and chat messages. When someone saves a change, every open copy reflects it right away without a refresh.
Zero-refresh push updates
Versioned on every save
Your software shouldn't live in a silo.
-
You rarely control your own software.
You see what would make your software better. Yet the real app sits behind a brick wall, wired to servers, databases, accounts, APIs, and templates you cannot touch.
-
Building it yourself means fighting the stack.
Leaving an existing system forces you to coordinate databases, APIs, accounts, and templates yourself. All that machinery pushes you back when all you want is to edit the page.
-
What if a document held everything?
Imagine a simpler document that travels with you and holds its own interface, behavior, and content. User actions, UI state, and app logic all live right inside the page.
-
Malleable documents cut the cords.
A malleable document is full stack software in one HTML file that edits and saves itself. Cut the wires to separate servers, databases, and templates, and own the working app.
See my full thinking: Why I built Hyperclay
Start free. Own every document you make.
Download any document as a single HTML file on any plan, forever. Upgrade when you want custom domains, file uploads, desktop sync, or multi-tenant signups.
Free
No card required
$0
forever
Try it with up to 10 documents.
- +Start from most of our templates
- +Edit in place, with the visual CMS
- +Version history and restore
- +Public or private documents
- +View-only share links and live updates
- +Image uploads, 25 MB total
Want more room? Keep as many documents as you like on your own computer with the free Hyperclay Local and HTML Clay apps.
AI, teams, folder sync, custom domains, subdomains, multi-tenant signups, forms, and the code editor need a paid plan.
Start freePersonal
Most popular
$6
/ month
or $48 / year (save 33%)
Unlimited documents, custom domains, AI features and two-way desktop sync.
- +Unlimited documents & custom domains
- +3 subdomains
- +1 multi-tenant document with user signups
- +File uploads up to 20 MB each
- +Two-way folder sync with Hyperclay Local
- +AI comments & one-click AI CMS setup
View exact limits
- Documents
- Unlimited
- Custom domains
- Unlimited, automatic SSL
- Subdomains
- 3, plus 1 for each month subscribed, up to 10
- Multi-tenant
- 1 document, plus 1 for each month subscribed, up to 3
- File uploads
- Up to 20 MB each, 500 MB total
Maker
Multiple products
$15
/ month
or $120 / year (save 33%)
Team support and higher limits for people running several products and domains.
- +Team support: you and 3 editors included
- +Everything in Personal
- +6 subdomains
- +5 multi-tenant documents with user signups
- +File uploads up to 100 MB each
View exact limits
- Team
- 4 people included, you and 3 editors. Each extra editor is $3/month, or $2/month on annual. Viewers and share links are always free.
- Documents
- Unlimited
- Custom domains
- Unlimited, automatic SSL
- Subdomains
- 6, plus 2 for each month subscribed, up to 25
- Multi-tenant
- 5 documents, plus 2 for each month subscribed, up to 25
- File uploads
- Up to 100 MB each, 2 GB total
Monthly and annual billing, managed through Stripe · 30-day money-back guarantee
“HyperCard for the modern age.”
“I really like what you've done.”