GrapesJS

Free

The grapesjs npm package is BSD-3-Clause and unrestricted. Canvas, block manager, style manager, layer manager, code viewer, asset manager, local and remote storage hooks, and the plugin API. No license key, no session ceiling, no domain limit. Official wrappers like @grapesjs/react and the export, filestack, and ckeditor plugins are free too.

Paid

GrapesJS Studio SDK is the commercial product: a finished editor you embed, with the GrapesJS team's support included.

Free: $0, 1,000 sessions/month, 1 domain, 100 MB storage, Studio branding, $50 per extra 1,000 sessions.

Startup: $200/month, or $1,800/year prepaid. 20,000 sessions/month, 2 domains, 10 GB storage, custom branding, priority email support, $20 per extra 1,000 sessions.

Business: $2,000/month, or $18,000/year prepaid. 50,000 sessions/month, 2 domains plus wildcards, 100 GB storage, dedicated Slack channel, $10 per extra 1,000 sessions.

Enterprise: custom pricing, unlimited sessions and storage, 24x7 phone support.

Separately, the hosted Studio app at app.grapesjs.com (a no-code site builder, not the SDK) runs $10/month, or $8.33/month billed annually, with a free plan capped at 100 AI credits and 0.1 GB.

Self-Hosted Costs

The core library is a bundle you ship with your app, so infrastructure cost is whatever your app already costs. The real spend is engineering. Plan on weeks of work to build storage, publishing, template management, and asset uploads around the editor, then ongoing maintenance as your component library grows. That is the number to compare against a Studio SDK license, not a server bill.

When to Pay

$200/month is roughly two hours of senior engineering time, so the build-versus-buy math tips toward Studio SDK fast if you are shipping a builder as a product feature. Stay on the core library when your editor needs custom components the SDK does not model, when you cannot ship vendor branding on a free tier, or when 1,000 sessions a month is honestly all the traffic you have.