Create a Stylish Tkinter Login System with SQLite | Python GUI Project

Demo :

Click Video 👇👇👇

Code :

import sqlite3

import tkinter as tk

from tkinter import messagebox

# Database Setup

conn = sqlite3.connect("database.db")

cursor = conn.cursor()

cursor.execute('''CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, username TEXT UNIQUE, password TEXT)''')

conn.commit()

# Tkinter Window Setup

root = tk.Tk()

root.title("Modern Tkinter Login - FuzzuTech")

root.geometry("420x400")

root.config(bg="#1e272e")  # Dark theme background

# Header Label

tk.Label(root, text="🚀 FuzzuTech Login", font=("Arial", 16, "bold"), bg="#1e272e", fg="#f1c40f").pack(pady=15)

# Username Label + Entry

tk.Label(root, text="Username:", bg="#1e272e", fg="white", font=("Arial", 12)).pack(anchor="w", padx=30)

username_entry = tk.Entry(root, font=("Arial", 12), bg="#dfe6e9", fg="black", width=30, relief="flat", highlightthickness=1)

username_entry.pack(pady=5, padx=30)

# Password Label + Frame (for Eye Button)

tk.Label(root, text="Password:", bg="#1e272e", fg="white", font=("Arial", 12)).pack(anchor="w", padx=30)

password_frame = tk.Frame(root, bg="#1e272e")

password_frame.pack(pady=5, padx=30, fill="x")

password_entry = tk.Entry(password_frame, font=("Arial", 12), show="*", bg="#dfe6e9", fg="black", width=25, relief="flat", highlightthickness=1)

password_entry.pack(side="left", fill="x", expand=True)

# Eye Button to Show/Hide Password

def toggle_password():

    if password_entry.cget('show') == "*":

        password_entry.config(show="")

    else:

        password_entry.config(show="*")

toggle_btn = tk.Button(password_frame, text="👁", command=toggle_password, font=("Arial", 10), bg="#3498db", fg="white", relief="flat", width=3)

toggle_btn.pack(side="right")

# Login Function

def login():

    username = username_entry.get().strip()

    password = password_entry.get().strip()

    if not username or not password:

        messagebox.showerror("Error", "⚠ Username and Password cannot be empty!")

        return

    conn = sqlite3.connect("database.db")

    cursor = conn.cursor()

    cursor.execute("SELECT * FROM users WHERE username=? AND password=?", (username, password))

    user = cursor.fetchone()

    conn.close()

    if user:

        messagebox.showinfo("Success", "✅ Login Successful!")

        root.destroy()

        open_dashboard()

    else:

        messagebox.showerror("Error", "❌ Invalid Username or Password!")

# Register Function

def register():

    username = username_entry.get().strip()

    password = password_entry.get().strip()

    if not username or not password:

        messagebox.showerror("Error", "⚠ Username and Password cannot be empty!")

        return

    conn = sqlite3.connect("database.db")

    cursor = conn.cursor()

    try:

        cursor.execute("INSERT INTO users (username, password) VALUES (?, ?)", (username, password))

        conn.commit()

        messagebox.showinfo("Success", "🎉 Registration Successful!")

    except sqlite3.IntegrityError:

        messagebox.showerror("Error", "⚠ Username already exists!")

    conn.close()

# Open Dashboard

def open_dashboard():

    dashboard = tk.Tk()

    dashboard.title("Dashboard")

    dashboard.geometry("350x200")

    dashboard.config(bg="#34495e")

    tk.Label(dashboard, text="🎯 Welcome to Dashboard!", font=("Arial", 14, "bold"), bg="#34495e", fg="white").pack(pady=30)

    dashboard.mainloop()

# Buttons with Gradient Style

login_btn = tk.Button(root, text="LOGIN", command=login, font=("Arial", 12, "bold"), bg="#27ae60", fg="white", relief="flat", width=15, height=1)

login_btn.pack(pady=10)

register_btn = tk.Button(root, text="REGISTER", command=register, font=("Arial", 12, "bold"), bg="#2980b9", fg="white", relief="flat", width=15, height=1)

register_btn.pack(pady=5)

# Run App

root.mainloop()