Free & Open Source No Installation Required

Build Desktop-Style Apps
In Your Browser

WebVB Studio is a free, browser-based IDE that brings back the simplicity of Visual Basic 6 with modern Python support. Design forms visually, write code, run instantly.

WebVB Studio - MyProject.webvb
Calculator
Form1.vb
Form1 (Design)
Private Sub btnEquals_Click()
Dim result As Double
result = Calculate(txtDisplay.Text)
txtDisplay.Text = CStr(result)
End Sub
Open Source
Works Everywhere
Instant Execution
VB6 & Python
Powerful Features

Everything You Need to Build Amazing Apps

A complete development environment with visual design, intelligent code editing, and instant execution.

🎨

Visual Form Designer

Drag and drop 25+ controls to build your interface. See changes in real-time. No HTML or CSS required.

💻

Dual Language Support

Write code in classic Visual Basic 6 syntax or modern Python. Switch between languages at any time.

Instant Execution

Click Run and watch your app come to life. No compilation, no build steps, just instant feedback.

🌐

Zero Installation

Everything runs in your browser. Works on Windows, Mac, Linux, and Chromebooks. Nothing to install.

🚀

Export & Share

Export your app as a standalone HTML file or share via URL. Deploy anywhere in seconds.

🤖

AI-Powered

Built-in AI assistant helps you write code, debug issues, and learn new concepts.

25+ Built-in Controls

From simple buttons to complex data grids, WebVB Studio includes everything you need. Create custom UserControls to extend the library.

CommandButton Label TextBox ListBox ComboBox CheckBox OptionButton Frame TabContainer Timer Image Shape ScrollBar Table DataGrid DatePicker WebBrowser Chart Canvas Database Inet UserControl
Button
CommandButton
TextBox
Select
ComboBox
Checked
CheckBox
📊
Chart
🎨
Canvas
See It In Action

Experience the Magic

From idea to working app in minutes. Watch how easy it is to build with WebVB Studio.

Form1.vb
' Simple Click Counter App
Private clickCount As Integer

Private Sub Form_Load()
    clickCount = 0
    lblCount.Caption = "Clicks: 0"
End Sub

Private Sub btnClick_Click()
    clickCount = clickCount + 1
    lblCount.Caption = "Clicks: " & clickCount
    
    ' Change color at milestones
    If clickCount Mod 10 = 0 Then
        lblCount.ForeColor = vbGreen
    Else
        lblCount.ForeColor = vbWhite
    End If
End Sub

Private Sub btnReset_Click()
    clickCount = 0
    lblCount.Caption = "Clicks: 0"
End Sub
Click Counter
Clicks: 0
Real-World Applications

Data Science & Business Apps

Build powerful applications for data analysis, business automation, and machine learning—all with visual design.

Data Science

Sales Dashboard

Interactive dashboard with Pandas DataFrames and Matplotlib charts. Filter, sort, and visualize your data in real-time.

Python Pandas Matplotlib DataGrid
preview
import pandas as pd
import matplotlib.pyplot as plt

def Form_Load():
    # Load sales data
    df = pd.read_csv("sales.csv")
    DataGrid1.DataFrame = df
    
    # Create chart
    Chart1.plot(df["Month"], df["Revenue"])
    Chart1.title = "Monthly Revenue"
    
def btnFilter_Click():
    filtered = df[df["Region"] == ComboBox1.Text]
    DataGrid1.DataFrame = filtered
Open in Studio
Python App

Image Processor

Process images with PIL/Pillow. Apply filters, resize, and save. Full Python power with a visual interface.

Python PIL Canvas FileDialog
preview
from PIL import Image, ImageFilter

def btnOpen_Click():
    img = Image.open(FileDialog1.FileName)
    Canvas1.draw_image(img, 0, 0)
    
def btnBlur_Click():
    img = current_image.filter(ImageFilter.BLUR)
    Canvas1.draw_image(img, 0, 0)
    
def btnGrayscale_Click():
    img = current_image.convert("L")
    Canvas1.draw_image(img, 0, 0)
Open in Studio
Business Portal

Inventory Manager

Track inventory, manage stock levels, generate reports. Connect to your database or REST API.

Database DataGrid Reports REST API
preview
Private Sub Form_Load()
    Database1.ConnectionString = "sqlite:inventory.db"
    Database1.Execute "SELECT * FROM products"
    DataGrid1.DataSource = Database1
End Sub

Private Sub btnAddStock_Click()
    Dim qty As Integer
    qty = Val(txtQuantity.Text)
    Database1.Execute "UPDATE products SET stock = stock + " & qty & _
        " WHERE id = " & DataGrid1.SelectedRow("id")
    RefreshGrid
End Sub
Open in Studio
Data Analytics

Survey Analyzer

Import CSV survey data, calculate statistics, and visualize results with interactive charts.

Python NumPy Statistics Chart
preview
import numpy as np
import pandas as pd

def btnAnalyze_Click():
    df = pd.read_csv(txtFile.Text)
    
    # Calculate statistics
    lblMean.Caption = f"Mean: {df['score'].mean():.2f}"
    lblStd.Caption = f"Std Dev: {df['score'].std():.2f}"
    lblMedian.Caption = f"Median: {df['score'].median()}"
    
    # Create histogram
    Chart1.histogram(df['score'], bins=10)
    Chart1.xlabel = "Score"
    Chart1.ylabel = "Frequency"
Open in Studio
Business Portal

Customer CRM

Simple CRM to track customers, contacts, and interactions. REST API integration included.

REST API DataGrid Forms Search
preview
Private Sub Form_Load()
    Inet1.URL = "https://api.example.com/customers"
    Inet1.Method = "GET"
    Inet1.Execute
End Sub

Private Sub Inet1_Complete()
    DataGrid1.DataSource = Inet1.ResponseJSON
End Sub

Private Sub btnSearch_Click()
    Dim results
    results = Filter(customers, txtSearch.Text)
    DataGrid1.DataSource = results
End Sub
Open in Studio
Machine Learning

ML Prediction Demo

Build a simple ML prediction interface using scikit-learn. Train models and make predictions visually.

Python scikit-learn NumPy Chart
preview
from sklearn.linear_model import LinearRegression
import numpy as np

model = LinearRegression()

def btnTrain_Click():
    X = np.array(DataGrid1.GetColumn("feature")).reshape(-1, 1)
    y = np.array(DataGrid1.GetColumn("target"))
    model.fit(X, y)
    lblStatus.Caption = "Model trained!"
    
def btnPredict_Click():
    x_new = float(txtInput.Text)
    prediction = model.predict([[x_new]])
    lblResult.Caption = f"Prediction: {prediction[0]:.2f}"
Open in Studio
Pandas & Matplotlib
SQLite & REST APIs
scikit-learn ML
31 Ready-to-Use Examples

Learn by Example

Explore our collection of examples covering everything from basics to advanced integrations.

All Examples

C

Calculator

A simple standard calculator with basic arithmetic operations.

VB6 Python
Beginner
T

To-Do List

Task manager with Add/Remove functionality using ListBox.

VB6 Python
Beginner
G

Guess Number

A simple high/low guessing game with random numbers.

VB6 Python
Beginner
D

Dice Roller

Random number generation and display with visual dice.

VB6 Python
Beginner
P

Pizza Order

Form with Options and Checkboxes calculating total price.

VB6 Python
Beginner
I

Interest Calc

Calculate simple and compound interest with inputs.

VB6 Python
Beginner
I

Invoice Calculator

Generate invoices with line items, tax calculation, and totals.

VB6 Python
Intermediate
A

Age Calculator

Calculate age using DatePicker and Date math functions.

VB6 Python
Beginner
C

Color Mixer

RGB Color mixer using ScrollBars with live preview.

VB6 Python
Beginner
C

CSV Viewer

Parses CSV string data into a Grid control.

VB6 Python
Intermediate
S

Sales Charts

Visualize data using the Chart control with multiple types.

VB6 Python
Intermediate
D

DataGrid + Pandas

Webshop analytics with DataGrid, pandas, and matplotlib charts.

Python Pandas
Advanced
M

Mini Browser

Web Browser control and API fetching demo.

VB6 Python
Intermediate
A

API Client

HTTP Requests with Headers and JSON parsing.

VB6 Python
Intermediate
I

Inet Advanced

Full Inet demo: JSON, WebSocket, Queue, Cache, Download.

VB6 Python
Advanced
J

JSON Parser

Parse, query, and modify JSON objects visually.

VB6 Python
Intermediate
R

REST API Client

Connect to REST APIs - fetch, create, update and delete data.

VB6 Python
Intermediate
C

Contact Manager

CRM-style contact management using the Rolodex control.

VB6 Python
Intermediate
P

Product Database

Persistent database with CRUD operations using Database control.

VB6 Python
Intermediate
S

SQLite Database

Full SQL support with SQLite - tables, queries, and data management.

VB6 Python
Advanced
S

Sales Report

Generate printable reports programmatically.

VB6 Python
Intermediate
G

Grouped Report

Advanced report with grouping, filtering, and HTML export.

VB6 Python
Advanced
W

WebShop Report

Product analytics with Sum, Avg, Median, StDev expressions.

VB6 Python
Advanced
T

Timer & Clock

Digital clock and stopwatch using Timer controls.

VB6 Python
Beginner
I

Image Viewer

Load images from URLs into Image control.

VB6 Python
Beginner
N

Notepad

Read and Write files to local virtual storage.

VB6 Python
Intermediate
S

String Functions

Test all VB6 string manipulation functions.

VB6 Python
Beginner
B

Bouncing Ball

Game loops, collision detection, and canvas rendering demo.

VB6 Python
Intermediate
U

UserControl Demo

Create custom UserControls with properties, methods, and events.

VB6 Python
Advanced
W

Webshop Demo

Full webshop with product catalog, shopping cart, and orders.

VB6 Python
Advanced
A

AI Assistant

AI-powered chat using Google Gemini and Workflow Designer.

VB6 Python
Advanced
31
Ready Examples
9
Categories
2
Languages (VB6 + Python)
100%
Free & Open Source
Who It's For

Built for Everyone

Whether you're learning to code or building tools for yourself, WebVB Studio adapts to your needs.

🌱
For Beginners

Your First App in 5 Minutes

Learning to code? WebVB Studio makes programming visual and fun. See your code come to life with every change. No complex setup, no confusing tools.

  • Visual drag-and-drop interface
  • Instant feedback on every change
  • Simple, readable syntax
  • Built-in AI helper for guidance

"I built my first calculator in under 10 minutes!"

📊
For Data Scientists

Visualize Data Instantly

Build interactive data dashboards with Python, Pandas, and Matplotlib. Create visual interfaces for your analysis without wrestling with web frameworks.

  • Pandas DataFrame integration
  • Matplotlib charts built-in
  • Interactive DataGrid control
  • Connect to REST APIs & databases

"Finally, a GUI for my Python scripts without Flask hassle."

🐍
For Python Developers

Python with a Visual GUI

Love Python but hate building UIs? WebVB Studio runs full Python via Pyodide (WebAssembly). Drag controls, write Python, ship desktop-style apps.

  • Full Python via WebAssembly
  • NumPy, Pandas, Matplotlib
  • Event-driven GUI programming
  • No Tkinter/PyQt complexity

"It's like Tkinter meets the browser, but actually pleasant."

📚
For Educators

Teach Without Setup Headaches

Works on any device with a browser, including school Chromebooks. Students see immediate results without installation complexities.

  • No installation required
  • Works on Chromebooks
  • Share projects via URL
  • Simple debugging tools

"My students actually enjoy programming now."

🏢
For Business Portals

Internal Tools Without IT Tickets

Build custom business applications, admin dashboards, and internal tools. Connect to databases and REST APIs. Deploy instantly, no DevOps required.

  • Database & REST API integration
  • Forms, tables, and reports
  • Export deployable backend code
  • Share via URL or standalone HTML

"We replaced 3 spreadsheets with one internal app in a day."

💎
For VB6 Veterans

Remember When Coding Was Fun?

Miss the simplicity of Visual Basic? WebVB brings it back with modern capabilities. Build tools for yourself without learning React, Vue, or Angular.

  • Familiar VB6 syntax
  • Event-driven programming
  • Classic form designer
  • Export to standalone apps

"It's like 1998 again, but better."

🚀
For Rapid Prototyping

From Idea to Demo in Minutes

Need a quick demo or proof of concept? Build functional applications in minutes, not days. Perfect for designers and product managers.

  • Drag-and-drop design
  • Instant preview mode
  • One-click sharing
  • Export as HTML

"I prototype ideas faster than I can explain them."

Why Choose WebVB?

The Smart Choice

See how WebVB Studio compares to traditional development environments.

Feature
WebVB Studio
Traditional IDEs
Installation None (browser-based) Heavy installers
Platform Support Any browser, any OS Platform-specific
Learning Curve VB6/Python simplicity Complex modern frameworks
Visual Designer Drag-and-drop Varies by tool
Deployment One-click export Build systems required
Sharing URL-based instant sharing File transfers
AI Assistant Built-in Third-party integrations
Price Free, Open Source Often expensive licenses

No compromises. Get the best of both worlds: classic simplicity with modern capabilities.

Quick Start

Up and Running in 4 Simple Steps

From zero to hero in under 5 minutes. No experience required.

🌐
Step 01

Open WebVB Studio

Visit the app in your browser. No downloads, no installation, no account required.

🎨
Step 02

Design Your Form

Drag controls from the toolbox onto your form. Arrange buttons, text boxes, labels, and more.

💻
Step 03

Write Your Code

Add event handlers in VB6 or Python. The AI assistant can help you get started.

🚀
Step 04

Run & Share

Click Run to test your app instantly. Export as HTML or share via URL.

Your First App in 5 Lines

Here's a complete "Hello World" app. Just add a button to your form, double-click it, and paste this code.

Try It Now
VB6
Private Sub btnHello_Click()
    MsgBox "Hello, World!"
End Sub

Ready to Start Building?

Join thousands of developers who've rediscovered the joy of visual programming. Your first app is just a few clicks away.

100% Free
No Account Required
Open Source
Built with 💜 for developers everywhere