Free website builder APIs let you add site creation to your platform without building one from scratch. The word free covers four models here: open-source tools that are free forever, developer sandboxes for building and testing, freemium plans with a permanent free tier, and free trials. Each model decides how far you can go before you pay, so the right choice depends on what you plan to ship. This guide compares six website builder APIs by their free model, what each free tier or trial includes, and what unlocks when you upgrade.
What is free website builder API
Free splits into four models, and each one bills you at a different point. Knowing which model a tool uses tells you when the cost arrives and what you have to build yourself.
- Open-source. The source code ships under a permissive or copyleft license. It is free forever and self-hosted. You supply hosting, site provisioning, and maintenance. GrapesJS and Webstudio sit here.
- Freemium (free tier). A permanent free plan with capped features. You can run small projects without paying, while white-label, higher volume, and branding sit behind upgrades. Brizy and TeleportHQ sit here.
- Free developer sandbox. Free while you integrate and test the API. Production usage is paid, usually on partner pricing. 10Web’s API works this way.
- Free trial. Full features for a fixed window, then a required paid plan. Simvoly runs a 14-day trial.
Free website builder APIs compared at a glance
The table below maps each option to its free model, what the free tier or trial covers, what sits behind a paywall, and whether hosting and white-label come included.
| Tool | Free model | What’s free | What’s gated | Hosting | White-label |
| GrapesJS | Open-source (BSD-3) | Full editor framework, self-hosted, no per-seat fees | Nothing by license. You build hosting and provisioning yourself | Self-host | Yes, no fee |
| Webstudio | Open-source (AGPL-3) + free Hobby plan | Core visual builder, HTTP API and CMS data binding | Pro features and higher limits ($20/mo) | Self-host or Webstudio Cloud | Yes, self-host |
| Brizy Cloud | Freemium (Free Forever) | Drag-and-drop editor, basic publishing | Dev API, white-label, custom domain (Agency / White Label $89–$159/mo) | Included | Paid tiers |
| TeleportHQ | Freemium (free tier) | Unlimited static sites, full code export, 15k AI tokens | Team collaboration, white-label (Enterprise), higher limits | Subdomain | Enterprise |
| Simvoly | Free trial (14 days) | Full builder plus funnels during the trial | Everything after 14 days; white-label on higher plans | Included | Paid plans |
| 10Web | Free developer sandbox | Sandbox credentials (~5 min), API docs, Slack support to integrate and test | Production is paid, quote-based partner pricing; white-label included | Included | Yes |
Free website builder API options
Six tools, three free models. Open-source comes first because it carries no paywall at all, then the freemium and sandbox options that trade some control for speed.
GrapesJS: The open-source editor framework
GrapesJS is a free, open-source web builder framework under the BSD-3-Clause license. You embed its drag-and-drop editor into your own application and customize it with JavaScript. The license carries no per-seat fees and no attribution requirement, so you can white-label the editor without paying anyone.
What you get free is the editor layer. What you build yourself is everything around it: hosting, site provisioning, templates, and user management. GrapesJS also ships a separate commercial Studio SDK with its own free tier for teams that do not want to assemble an editor from primitives.
Best for engineering teams that want full control of the builder and have the time to build the backend.
Webstudio: The open-source visual builder
Webstudio is an open-source visual builder under AGPL-3.0, positioned as a Webflow alternative. It supports all CSS properties and binds to any HTTP API or headless CMS for dynamic data, which gives it more API reach than most open-source editors.
The free Hobby plan covers projects that do not need paid features. The Pro plan runs $20 per month and adds higher limits, with a 14-day Pro trial. You can self-host with Docker and PostgreSQL, or start on Webstudio Cloud and move to self-hosting later.
Best for teams that want an open-source builder with real API and CMS data binding, not a code-export tool.
Brizy Cloud API: The freemium drag-and-drop builder
Brizy Cloud runs a Free Forever plan with the drag-and-drop editor and basic publishing. It is the friendliest option here for non-technical end users, which matters if you embed a builder for your customers.
The developer API and white-label sit on paid tiers. Brizy’s APIs automate account creation and control PRO licenses from your side, and the white-label plans ($89 to $159 per month) add custom branding, a platform domain, and branded client communication. The free plan lets you test the editor before you reach those tiers.
Best for SaaS platforms that want a no-code editing experience under their own brand once they upgrade.
TeleportHQ: The freemium design-to-code builder
TeleportHQ is a design-to-code builder rather than a hosting platform. Its free tier is generous for the category: unlimited static sites, full code export, and 15k AI tokens. It exports clean React, Vue, Next.js, Angular, and HTML, so you deploy the output anywhere.
Team collaboration and white-label editing move to paid and Enterprise plans, with the Professional plan at $9 per editor per month billed annually. Hosting runs on a TeleportHQ subdomain on lower tiers.
Best for developer-focused products that want visual editing with code-level control over deployment.
Simvoly: The free-trial all-in-one builder
Simvoly bundles websites, funnels, memberships, and CRM into one platform. Its free offer is a 14-day trial with no credit card required, not a free-forever tier, so plan for a paid plan once the window closes.
Paid plans start at $12 per month billed annually and climb to $249 for Pro. White-label, which lets you resell the platform and set your own client prices, sits on higher plans. API integrations cover forms, booking, and CRM.
Best for platforms that need websites plus funnels and memberships, and can move to a paid plan after testing.
10Web: The freemium AI builder with a free developer tier
10Web is the agentic website builder for WordPress, and its API combines AI generation, managed hosting, and a white-label layer in one call. It is the only option in this list where one request turns a prompt into a live, multi-page WordPress site with hosting attached, so you do not assemble a generator, a host, and a provisioning system from separate free parts.
The free part is a developer sandbox, not a free production plan. You get sandbox credentials in about five minutes, developer documentation, and Slack support while you integrate, at no cost. Production is paid through quote-based partner pricing set by your website volume, AI generation, and hosting needs, with hosting included unless you run your own infrastructure.
The value runs across the full site lifecycle, not only launch. AI agents generate a complete WordPress site from a prompt, your users refine it with a visual editor and AI editing, and the same managed platform handles hosting and ongoing changes.
Every site is real WordPress, white-labeled and portable with no lock-in, so you are not stitching a generator, a host, and a provisioning layer together from separate free parts. The platform has generated more than 2 million websites.
Best for teams that want generation, hosting, and white-label from one API, and a free sandbox to integrate before they pay for production. You can start with the Website Builder API sandbox and move to a paid plan when you ship.
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How to choose a free website builder API
The right free model depends on your constraint: engineering time, speed to launch, or the need to resell under your brand. Match the model to the constraint and the choice gets simple.
| Your situation | Best free model | Options |
| Solo dev building an MVP, wants control | Open-source | GrapesJS, Webstudio |
| Solo dev wants generation and hosting without a backend | Free developer sandbox | 10Web |
| SaaS embedding site creation for users | Freemium API or sandbox to production | Brizy, 10Web |
| Agency reselling under its own brand | White-label (budget for the paid tier) | Simvoly, Brizy, 10Web |
Open-source trades money for engineering time: you pay nothing and build the backend. Freemium trades control for speed: you launch fast on a capped plan and pay to remove the cap. A developer sandbox lets you test the full integration before any production cost arrives. White-label is the one feature that almost always sits behind a paywall, so if reselling is the goal, plan for that line item from the start.
FAQ
Is there a truly free website builder API?
Yes. Open-source frameworks like GrapesJS and Webstudio are free forever and can be white-labeled without licensing fees. You supply the hosting, provisioning, and maintenance yourself. Hosted tools offer free tiers, sandboxes, or trials rather than unlimited free production.
What is the difference between a free and a freemium website builder API?
Free, in the open-source sense, gives you the full source code at no cost to run and modify. Freemium gives you a capped free plan with paid upgrades for white-label, higher volume, and branding. One is free because you host it; the other is free until you outgrow the free tier.
Do free website builder APIs include hosting?
Open-source tools do not. You host the sites yourself. Hosted freemium tools include hosting, usually on their subdomain on the free tier, with custom domains and white-label hosting on paid plans. 10Web includes managed hosting through its API unless you run your own infrastructure.
Can I embed a website builder into my platform for free while testing?
Yes. Open-source tools embed at no cost. Freemium APIs and developer sandboxes let you integrate and test before you pay, which means you can validate the build inside your product before committing to a production plan.
How does the 10Web Website Builder API compare to other options?
10Web stands out because it offers AI website generation, automated WordPress provisioning, managed hosting, and a fully white-label dashboard; all from a single API. While other tools either provide visual editing or open-source flexibility, 10Web delivers an end-to-end solution that eliminates the need to build your own hosting, templates, or infrastructure. It’s the most complete option for platforms that want instant, scalable website creation under their own brand.
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See how easy it is to integrate AI website generation into your platform!
