Craft.js vs Builder.io: build every part of it or buy all of it

The purest version of the question

Every build-versus-buy conversation in this category is a version of this pairing. Craft.js is the minimum viable foundation — you write the editor. Builder.io is the maximum — you write a component registration file.

Between them sit everything else in this dataset, which is why understanding this comparison makes the others easier.

What you are buying with Builder.io

Not an editor. A system: visual editing plus content delivery, personalisation, experimentation, roles, scheduling and multi-framework SDKs. Buying it means those problems are solved on a timescale of days.

The costs are the ones every platform carries: content on vendor infrastructure, pricing that tracks usage rather than headcount, and no path to putting the editor in front of your own customers under your own brand.

What you are building with Craft.js

Everything above the node tree. Our build-versus-buy calculator defaults to 520 hours for a customer-facing editor on an open-source engine, and with Craft.js none of the interface lines are optional — the library ships no panels, no toolbar, no settings forms.

What you get for that is total control of the editing experience and no vendor at all: no credits, no seats, no data-residency conversation, no roadmap dependency.

The three questions that decide it

Who edits? If your customers do, Builder.io is structurally awkward — its accounts and branding are not yours — and Craft.js is designed for embedding. If your marketing team does, Builder.io is doing far more than Craft.js ever will.

Is the editing experience a differentiator? If users would choose you because your editor feels better than a competitor's, own it. If they tolerate the editor, buy it.

How does cost scale? Per-user platform pricing grows with your success; an engineering cost does not. Model three years with your projected customer count, not this quarter.

The option this comparison hides

Craft.js and Builder.io are the extremes, and most teams belong between them. Puck gives you the component-editing model with an interface included, MIT licensed, at 90.4 kB. GrapesJS gives you a full engine with a style manager, free, if the editor must leave React.

Choosing Craft.js against Builder.io specifically should follow from a deliberate decision that the supplied interfaces in the middle of that range will not do.

Migration

Builder.io to Craft.js is a rebuild of both the content and the editor, and the workflow features have no equivalent to migrate to.

Craft.js to Builder.io means registering your components with Builder and transforming the stored tree — mechanically easier, and it means abandoning the custom editor you spent months building, which is usually the real objection.

Verdict

Buy Builder.io if the editor is a feature and speed matters. Build on Craft.js if the editor is the product and you have a quarter to spend on it. If neither description fits comfortably, you are probably in the middle of the range, and the middle is where most successful embedded editors actually live.

Decision checklist

1. Is the editing experience a reason customers choose us? Only that justifies the Craft.js route.
2. How many customers will use the editor, and how does each vendor's meter treat them? Platform pricing scales with success; engineering cost does not.
3. Can content live with a vendor? If not, Builder.io is out before features are discussed.
4. Do we have a quarter to spend before a customer sees it? That is the realistic Craft.js timeline for a polished editor.
5. Would a middle option serve us better? Puck and GrapesJS both sit between these extremes, and most teams belong there.

The number that matters

520 hours against a subscription. That is the whole comparison, and the honest framing is that the hours are only worth spending if the editor differentiates your product. If customers merely tolerate the feature, buying it back is the better use of a quarter — and our calculator will tell you which case you are in.