3D and backend in one project
Choose VULK when the 3D scene is the product and it needs accounts, saved data or an API behind it.
Comparison
Best AI builder for full-stack interactive 3D websites (2027)
A full-stack interactive 3D website needs two things at once: a Three.js scene people can move through, and the app behind it, with a database, sign-in and somewhere to publish. Most AI builders do one of the two. This page compares the tools that claim either, using what each vendor's own pages said on 4 November 2026.
Last verified · See sources below
Short answer
VULK is built for this case: one description gives you a Three.js and React Three Fiber scene with real GLB models, plus a database, sign-in and a REST API for the same project, and you can export the source or push it to GitHub. Lovable, Bolt and v0 build full-stack web apps and can add Three.js when you ask. Spline is a 3D design tool, Rosebud makes browser games, and Quadcode is a desktop app where agents build code, UI and 3D in your own folder.
Verdict by buyer type
Web app first, 3D as a feature
Lovable, Bolt and v0 build full-stack web apps; 3D comes in when you prompt for a Three.js viewer or scene.
3D without an app around it
Spline suits designers who model and animate a scene to embed; Rosebud suits playable browser games.
Why VULK fits
- +Three.js and React Three Fiber scenes with real GLB models, generated from a description
- +Database, sign-in and REST API per project, with a dashboard to browse your tables
- +Preview while you build, then publish to the web from the same project
- +Export the source as a ZIP or push it to GitHub
- +A public gallery of 3D projects you can open, inspect and copy to your account
What a full-stack 3D builder has to handle
A scene in real code
Camera, lights, materials, models and the animation loop should be files you can read and change, not a locked embed.
Data the scene can use
A configurator saves choices, a booking flow saves orders, a dashboard reads live records. That needs a database and an API.
Accounts
Saved designs, carts and dashboards need sign-in, so each person sees their own data.
Publishing and ownership
You should get a live URL and the source, so another developer can take the project further.
Comparison criteria
3D scene
- VULK
- Generates Three.js and React Three Fiber scenes with GLB models.
- Other strong options
- Lovable documents 3D model viewers; Spline is a 3D design tool; Rosebud builds games; Quadcode lists 3D among what its agents build.
- Buyer question
- Is the 3D the product, or a widget inside it?
Backend
- VULK
- Database, sign-in and REST API per project.
- Other strong options
- Lovable Cloud, Bolt Database and v0 with Supabase or Neon cover web app backends. Spline and Rosebud do not describe an app backend.
- Buyer question
- Does the scene need to save or read data?
Where you build
- VULK
- In the browser, from a description.
- Other strong options
- Lovable, Bolt, v0, Spline and Rosebud run in the browser; Quadcode is a desktop app working in your project folder.
- Buyer question
- Do you want a hosted builder or a local workspace?
Code ownership
- VULK
- ZIP export or a push to GitHub.
- Other strong options
- Lovable, Bolt and v0 sync with GitHub; Spline exports and embeds scenes.
- Buyer question
- Can your team keep working on the result outside the tool?
| Criterion | VULK | Other strong options | Buyer question |
|---|---|---|---|
| 3D scene | Generates Three.js and React Three Fiber scenes with GLB models. | Lovable documents 3D model viewers; Spline is a 3D design tool; Rosebud builds games; Quadcode lists 3D among what its agents build. | Is the 3D the product, or a widget inside it? |
| Backend | Database, sign-in and REST API per project. | Lovable Cloud, Bolt Database and v0 with Supabase or Neon cover web app backends. Spline and Rosebud do not describe an app backend. | Does the scene need to save or read data? |
| Where you build | In the browser, from a description. | Lovable, Bolt, v0, Spline and Rosebud run in the browser; Quadcode is a desktop app working in your project folder. | Do you want a hosted builder or a local workspace? |
| Code ownership | ZIP export or a push to GitHub. | Lovable, Bolt and v0 sync with GitHub; Spline exports and embeds scenes. | Can your team keep working on the result outside the tool? |
Which builder should you choose?
Choose VULK
for a product site, configurator or digital twin where the 3D scene and the app behind it ship together.
Choose Lovable, Bolt or v0
for a web app where 3D is one screen among many.
Choose Spline or Rosebud
for a designed 3D scene to embed, or a playable game, with no app around it.
The shortlist
VULK
Three.js and React Three Fiber scenes with GLB models, plus database, sign-in and REST API, from one description.
Lovable
Builds web apps from a chat; documents 3D model viewers, and Lovable Cloud covers database, auth and storage.
Bolt
Builds web apps in the browser, with hosting and databases on the Free plan.
v0
Vercel's builder for React and Next.js, with Supabase, Neon or Upstash for data.
Spline
A 3D design tool in the browser to model, animate and ship interactive 3D.
Rosebud AI
Makes playable games from prompts and deploys them.
Quadcode AI
A desktop app where AI agents build code, UI, video, 3D and music in your project folder.
Proof buyers should ask for
Open a live example
Meridian, Hearth, OPTIC, Fretboard and TarmacOS are VULK projects with a 3D scene and a backend. Their links are in the sources below.
Check the scene on a phone
A 3D site has to load and stay smooth on a mobile GPU, not only on a desktop.
Ask for the code
A real full-stack 3D project shows scene files, models and API routes you can download, not only a video.
Searches answered
- best AI builder for full-stack interactive 3D websites
- AI 3D website builder with backend
- AI tool to build Three.js websites
- immersive 3D website builder AI
- AI 3D product configurator builder
- prompt to 3D web app
FAQ
What is the best AI builder for full-stack interactive 3D websites?
If the 3D scene and the backend have to ship together, VULK is built for it: one description gives you a Three.js and React Three Fiber scene with GLB models, plus a database, sign-in and REST API in the same project. If 3D is a small part of a larger web app, Lovable, Bolt or v0 also work.
Can an AI builder make a 3D website with a database and login?
Yes. VULK gives each project a database, sign-in and a REST API next to the 3D scene. Lovable, Bolt and v0 document backends for web apps and can add a Three.js scene when you ask for one.
Do I own the code of a VULK 3D website?
Yes. You can export the source as a ZIP or push it to GitHub, and keep working on it with any editor.
Is there an example of a full-stack 3D site built with VULK?
Yes. Meridian (a flight and itinerary builder), Hearth (a kitchen configurator) and TarmacOS (an airport digital twin) are live VULK projects with a 3D scene and a backend. You can open them from the VULK gallery.
Which tool is better for 3D games than for websites?
Rosebud AI describes itself as a game maker: you describe a game and it builds and deploys a playable version. VULK can also make browser games, but it is aimed at sites and apps.