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Alpha The designer, publishing, CMS, forms and the MCP agent door all run today. Alpha means rough edges — read what is still ahead

The designer · four surfaces, one document

CanvasShippingDrag, resize and place to the pixel. Eight handles, an 8px snap.Code modeShippingWritable HTML and a stylesheet that applies as you type.BreakpointsShippingFour widths, cascading downward. Layers store only what changed.Classes and themeShippingOne stylesheet per project, one panel away from the canvas.
No account neededOpen the designer and move something.It boots with a document already in memory. Drag a box, switch to code, and watch the same edit arrive in both.Open the designer

Also in the product

PresetsShippingSeven sections, copied by valueBaselumen importShippingThe suite library, live in a panelPreviewShippingThe document as a real pageBlock libraryIn progressSave a section, place it anywhereAssetsIn progressImages at their true aspect ratioShippingPlannedBranches, deployments, domains
SupportDocumentationFAQBuild logsupport@comlumen.com

The document · decisions written down, not implied

The section spineShippingVertical is flow, inside is free. That split is the whole model.Derived positionsShippingA section top is the sum of the heights above it. Never stored.The override cascadeShippingPartial layers, narrowest wins — exactly like a max-width query.Round-trippingShippingparse(serialize(doc)) is the contract that makes code an editor.
The differentiatorAn agent and a person edit the same way.Every gesture is one action through one reducer, so a programmatic surface is a wiring job rather than a second product.Read the agent plan

Read

ArchitectureThe model, in fullDocsHow the designer behavesAgents and MCPPlannedDriving it programmaticallyReferenceShort pages, one question eachFAQThe questions that keep arrivingBuild logEvery commit that moved the product
SupportDocumentationFAQBuild logsupport@comlumen.com

The suite · five products, one account

StacklumenThe parent company, the console, and the account everything signs in with.HublumenClient portal — project status, async approvals, file delivery, billing.BaselumenThe component library the designer imports from, live, in a panel.KitlumenTools for the rest of the workflow — auditing, checking, measuring.
One accountSign in once, for the whole suite.Comlumen is a satellite of stacklumen.com. If you already use one of the products, you are already signed in here.How the suite fits

Comlumen

AboutWhat this is, and who builds itWhere we are goingThe roadmap, gaps includedThe suiteHow the five fit togetherPricingFree to build, paid to hostDashboardProjects and deploymentsSupportRaise somethingBuild logWhat changed, and whenLegalTerms, privacy, and the rest
SupportDocumentationFAQBuild logsupport@comlumen.com
Dashboard
SupportDocumentationFAQBuild logsupport@comlumen.com

Product

The designer · four surfaces, one document

CanvasShippingDrag, resize and place to the pixel. Eight handles, an 8px snap.Code modeShippingWritable HTML and a stylesheet that applies as you type.BreakpointsShippingFour widths, cascading downward. Layers store only what changed.Classes and themeShippingOne stylesheet per project, one panel away from the canvas.

Also in the product

PresetsShippingSeven sections, copied by valueBaselumen importShippingThe suite library, live in a panelPreviewShippingThe document as a real pageBlock libraryIn progressSave a section, place it anywhereAssetsIn progressImages at their true aspect ratioShippingPlannedBranches, deployments, domains
No account neededOpen the designer and move something.Open the designer

How it works

The document · decisions written down, not implied

The section spineShippingVertical is flow, inside is free. That split is the whole model.Derived positionsShippingA section top is the sum of the heights above it. Never stored.The override cascadeShippingPartial layers, narrowest wins — exactly like a max-width query.Round-trippingShippingparse(serialize(doc)) is the contract that makes code an editor.

Read

ArchitectureThe model, in fullDocsHow the designer behavesAgents and MCPPlannedDriving it programmaticallyReferenceShort pages, one question eachFAQThe questions that keep arrivingBuild logEvery commit that moved the product
The differentiatorAn agent and a person edit the same way.Read the agent plan

Company

The suite · five products, one account

StacklumenThe parent company, the console, and the account everything signs in with.HublumenClient portal — project status, async approvals, file delivery, billing.BaselumenThe component library the designer imports from, live, in a panel.KitlumenTools for the rest of the workflow — auditing, checking, measuring.

Comlumen

AboutWhat this is, and who builds itWhere we are goingThe roadmap, gaps includedThe suiteHow the five fit togetherPricingFree to build, paid to hostDashboardProjects and deploymentsSupportRaise somethingBuild logWhat changed, and whenLegalTerms, privacy, and the rest
One accountSign in once, for the whole suite.How the suite fits
Legal

Data processing.

For the data your sites collect, you are the controller and we are the processor: we act on your instructions, and only on them.

Effective 5 September 2026

The arrangement

Data your published sites collect — form submissions, CMS entries — is yours. We store and serve it on your instructions, protect it with the same measures that protect the platform, delete it when you delete it, and share it only with the subprocessors that host the service. We handle it in line with GDPR and similar law where it applies.

A signed DPA

If your organisation needs a countersigned data processing agreement, write to support@stacklumen.com.

These pages are written to be read, and they are the terms we operate by — but they are maintained by the team, not issued as legal advice. If something here matters to a decision you are making, ask your own counsel, and if anything looks wrong or unclear, tell us at support@stacklumen.com.

Deployed with Astro and Comlumen