Build Your First Web App: Go From a Blank Screen to a Live Web App
TL;DR: This guide will walk you through how to build a web app step-by-step. No extra servers or complex tools required. It’s perfect if you have coded a little and are ready to dive into building web apps. By the end, you’ll have a simple but functional web app that you can call your own.
You’ve watched tutorials on Python and have tried some mini-projects. But you haven’t built a real web application yet. Apps like a habit tracker, a book organizer, or even a to-do list are a great starter project.
As a beginner, your first web application development can feel daunting. Keep reading for a step-by-step guide to building a web app. You’ll have your first web app finished in no time.
Table of Contents
- Choose Your Tech Stack
- Prepping For Your First Web App Build
- Set Up the Coding Environment
- Start Developing the Web App
- Polish the Web App
- What’s Next?
- FAQs
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Choose Your Tech Stack
A tech stack is the tools you’ll use to build web applications. First, you’ll need to choose a programming language and framework. Many programming languages can create a web-based application. Since Python is popular with beginners, let’s look at popular Python frameworks:
- Flask: It’s lightweight and flexible. Preferable for beginners, as it lets them know what’s going on.
- Django: Has a lot of built-in features like databases, admin panels, and authentication. Good choice for intermediate developers.
- FastAPI: Modern, fast, and great for building APIs. It has a steeper learning curve for complete beginners.
Recommendation: If you’re a beginner, start with Flask since it’s a well-documented framework. It doesn’t do too much and leaves space for you to learn on the go.
You’ll also need a database to store your data. SQLite is perfect for beginners since it’s lightweight.
Last but not least, you’ll benefit from knowing frontend basics, especially if you’re aiming for a full-stack developer role. HTML and CSS help create the user interface (UI) and user experience (UX). You could also use a pre-made CSS framework instead.
Prepping for Your First Web App Build
Planning is the foundation of everything you build. Skipping this essential step can lead to tangles throughout your code.
Define the App’s Purpose
Keep it simple with your first web app project. Choose a web app idea like a to-do list or a habit tracker. Your goal at this point is to start and finish something. The app-building experience is how you learn.
Once you have locked in your idea for the app, you’ll want to define its main function.
Identify Core Features
Write 3-5 things your app should do. For example, a to-do app should have capabilities like:
- Add a new task.
- Mark a task as complete, in progress, or pending.
- Delete a task.
- Show tasks as a list on a single page.
Sketch the Basic Design
You don’t need expert designing skills for this part. Just make a rough sketch on paper. Map out what pages you need and where you want things to sit. For an extra challenge, use a prototyping tool like Figma to create a professional mock-up.
Set Up the Coding Environment
You’ve got the plan and the sketch ready. Now you need to figure out where to write your code. You’d need a setup for that. Here are two solid options for development tools:
- VS Code: Visual Studio Code is a free and powerful code editor that supports full app development.
- Jupyter Notebook: Great for experimenting with Python logic step-by-step. However, not an ideal pick for full web app development.
We recommend starting with VS Code. Once you install it on your device, open your terminal and run the code below to set up.
- Create a virtual environment:
python -m venv venv - Activate it:
source venv/bin/activate(Windows:venv\scripts\activate) - Install Flask:
pip install flask flask-sqlalchemy
Start Developing the Web App
This is the part where things get fun. Follow this development process to build a web app today:
Build the Home Page First
Start with a basic page that will appear in the web browser. In Flask, it’s like creating an app.py file, defining a route (a URL), and connecting it to an HTML template. Focus on functionality here. It all starts with a plain white page before it turns into an interactive beauty.
Add a Form That Connects to Python
A form is an interaction between the user and your app. You’ll need to create an HTML form and then write Python code to handle its functionality.
Set Up a Database
Right now, any data you enter into your app disappears after a simple refresh. The solution is to use a database to save your data. For beginners like you, SQLite paired with Flask-SQLAlchemy is the best fit, as it requires no extra installation.
After connecting to a database, you need to test it. Add some data to your app, close it, and reopen it. If the data stays intact, you’ve done it!
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☑️ If a career in tech is right for you
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Polish the Web App
Once the core features are embedded, it’s time to make your app pleasing to the eye.
Style Your App With HTML and CSS
Your aim is to make your app clean and readable. All you need is a consistent font, some spacing, and a single color or two.
Free CSS frameworks like Bootstrap and Tailwind CSS can accelerate this process. These frameworks offer pre-made styles, saving you a lot of time from writing everything from scratch.
Deploy Your App
Making your app go live is a milestone. And for that, you’d need a hosting platform. Most of these platforms don’t need anything except a GitHub repository.
Here are three beginner-friendly hosting platforms:
- Railway: Simple, quick setup, and has a free tier.
- Render: Free tier with a beginner-friendly deployment process.
- PythonAnywhere: Specifically built for Python apps.
Add the App to Your Portfolio
When the app is live, add it to your portfolio with a short description. Mention its function, what you built it with, and what you learned. Recruiters love to see real projects and your thought process behind them.
What’s Next?
The next step isn’t always building another new app. Sometimes it’s going back to the one you built and improving it. This way, you’ll improve your skills and create a great app by continuing to refine your work.
Once you’re confident about your skills, take them further by building Gen-AI web apps. With Skillcrush by your side, you’ll create real-world projects with zero fluff, only hirable skills.
FAQs
Can I Make a Web App for Free?
Yes, you can make a web app for free. Python, Flask, SQLite, and VS Code are all free sources. Railway, Render, and PythonAnywhere are platforms with free plans. You can start from zero and deploy your app without spending a single penny.
Is It Difficult to Create a Web App?
Difficulty level depends on what web app you’re building. However, a simple web app with Python is accessible for beginners. A learning curve is inevitable; the key is to begin with small steps. You won’t be perfect in the first try, and that’s the beauty of learning.
Is Tech Right For you? Take Our 3-Minute Quiz!
You Will Learn:
☑️ If a career in tech is right for you
☑️ What tech careers fit your strengths
☑️ What skills you need to reach your goals
