# How to Vibe Code Your Own Bubble (and Stop Paying for It)

> Build web & mobile apps with the only no-code AI app builder

- Site: https://bubble.io
- Category: Web App Builder / No-Code Platform
- Platforms: Web app
- Verdict: **Impossible** (5/100 vibecodeable)
- Estimated effort: 6+ months of full-time work

## Verdict

Building a functional personal clone of Bubble is impossible due to the monumental scope of engineering a visual IDE canvas, a proprietary visual AST compiler, and an isolated multi-tenant metering runtime.

Bubble is essentially a full-blown visual operating system and cloud IDE. To replicate it, you would need to build a web-based drag-and-drop canvas with component trees, a visual programming language interpreter that compiles into performant Node.js routines, a relational schema builder, a secure multi-tenant execution sandbox, and a compute-metering engine. While AI coding tools can scaffold standard web apps, building an entire visual IDE and runtime compiler from scratch is far beyond a solo side project.

### What you can't replicate

- The 14-year maturation of its proprietary visual compiler and execution runtime
- The massive library of community-built plugins and integrations
- Enterprise-grade infrastructure isolation and high-availability AWS orchestration

## What it does

Cloud-hosted visual programming platform and no-code/AI app builder enabling users to design, build, and host full-stack web and native mobile applications without traditional code.

### Core features

- Visual drag-and-drop WYSIWYG editor canvas
- Database schema designer with dynamic types and fields
- Visual workflow logic tree builder (conditions, actions, events)
- Server-side backend workflows and scheduled tasks
- API Connector for integrating third-party REST services
- Multi-tenant resource metering (Workload Units tracking)
- User authentication and role-based privacy rules
- Runtime app compiler and rendering engine

## The business

### Pricing

- Free: $0/month
- Starter: $29/month
- Growth: $119/month
- Team: $349/month
- Enterprise: Custom ($3,000+/mo)

### Funding

$106.25 million raised.
- Seed Round (June 2019) - $6.25M
- Series A (July 2021) - $100M
Investors: Insight Partners, SignalFire, Betaworks

Founded 2012.
Team size: 51-250.

## The hard parts

- Translating a complex visual Abstract Syntax Tree into performant runtime execution without a proprietary compiler
- Building a safe multi-tenant sandbox and metering engine to track CPU and database compute per user app
- Designing a recursive WYSIWYG canvas with absolute/responsive layouts and live preview rendering
- Executing dynamic relational searches and constraints over database records inside an abstract schema builder

## How to vibe code Bubble

### Prerequisites

- Node.js (free): Required for running the full-stack TypeScript environment locally.
- GitHub (free): Source code repository and version control management.

### Recommended AI tools

- Claude Code: Best-in-class multi-file agentic coding tool for scaffolding complex architecture and backend compilers.
- Cursor: Ideal for iterative frontend work on the visual builder canvas and UI component trees.

### Stack

- Frontend: Next.js with Tailwind CSS and React DnD / dnd-kit for the canvas interface
- Backend: Node.js API routes with a custom expression evaluator and AST interpreter
- Database: PostgreSQL via Neon
- Auth: better-auth
- Payments: Stripe
- Other: Zod for schema validation, Monaco Editor for code expressions, PostHog for telemetry

### Hosting

- Vercel (Hosting the Next.js visual IDE builder frontend and API routes): $0-20/mo
- Neon (Serverless PostgreSQL database for storing user app schemas and records): $0/mo

### Build guide

1. **Project Scaffolding and Database Schema** — Initialize the Next.js repository with Tailwind CSS, configure Neon PostgreSQL via Drizzle ORM, and set up better-auth for user authentication.

```
Initialize a Next.js full-stack project with TypeScript, Tailwind CSS, and Drizzle ORM connected to Neon PostgreSQL. Set up better-auth with email/password authentication. Create database tables for users, applications (storing visual layout JSON and workflow JSON trees), database_types, and database_fields to support dynamic user-defined data structures.
```

2. **Visual Canvas and Component Tree Editor** — Build the drag-and-drop WYSIWYG editor canvas where users can place UI elements, configure properties, and structure visual layout hierarchies.

```
Create a drag-and-drop visual canvas component using dnd-kit within the Next.js app dashboard. Implement a left sidebar with UI element primitives (Text, Button, Input, Group, RepeatingGroup) and a right property inspector panel. Store the canvas layout as a recursive JSON tree structure in local state and persist it to the application table.
```

3. **Visual Database Schema Manager** — Construct an interface allowing users to define custom data types and fields dynamically, mapping them to underlying database operations.

```
Build a visual database schema manager page where users can create custom Data Types (e.g., 'User', 'Product') and add fields with types (Text, Number, Date, Yes/No, Relationship to another type). Implement backend API handlers that dynamically read these definitions to generate runtime queries.
```

4. **Visual Workflow Logic Builder** — Develop a step-by-step conditional workflow tree editor to handle triggers (e.g., 'Button Clicked') and actions (e.g., 'Create a new thing', 'Navigate to page').

```
Implement a visual workflow builder interface where users select an event trigger (e.g., element click) and chain sequential actions with conditional expressions. Build an expression evaluator parser in TypeScript that can parse dynamic data expressions like 'Current User's email' or 'Result of step 1's value' at runtime.
```

5. **Runtime App Preview and Execution Engine** — Build a sandboxed preview runtime that parses the stored application JSON schema and workflow trees to render a live, functional web application.

```
Create an application runner view at `/app/[appId]/run` that fetches the target application's layout JSON and workflow definitions. Dynamically render the React components based on the layout tree and attach event handlers that execute the stored workflow steps and interact with the dynamic database models.
```

6. **Resource Metering and Workload Unit Tracking** — Implement a logging middleware that tracks server CPU time, database query counts, and payload sizes to simulate Bubble's Workload Unit (WU) metering system.

```
Add a backend telemetry middleware that measures database read/write query execution time and API payload sizes for each user application request. Calculate and aggregate simulated 'Workload Units' into a usage table, displaying a real-time analytics chart on the app dashboard.
```

### Cost vs paying

**Starting costs (one-time):**

- AI coding assistant subscription (Claude Pro / Cursor): $40
- Total: $40 one-time

**Ongoing costs (monthly):**

- Vercel Hobby / Pro Hosting: $0-20/mo
- Neon Serverless Postgres: $0/mo
- Total: $0-20/mo

- Paying for the SaaS instead: $29/mo to $549/mo+
- Build time: 250+ hours
- AI tool credits: $40
- Break-even: N/A (Impossible to fully replicate core engineering scope)

## Sources

- [Bubble Pricing in 2026](https://bubble.io/pricing)
- [Bubble Platform Architecture Overview](https://bubble.io/features)