Build an Advanced PC Usage Monitor in Python (Active Window + Idle Detection) – Full Source Code 2026
Demo :
Click Video 👇👇👇
Features :
-
Real-time active window tracking
-
Idle detection via Win32 API
-
JSON log storage
-
Top 5 usage analytics
-
Focus Alert popup
Code :
import os
import json
import datetime
import time
import psutil
import win32gui
import win32process
import win32api
import threading
import queue
import customtkinter as ctk
import sys
from tkinter import messagebox
# ====================================================================
# LOGGER LOGIC
# ====================================================================
LOG_DIR = "logs"
os.makedirs(LOG_DIR, exist_ok=True)
def get_today_log_path():
"""Returns the JSON file path for today's logs."""
today_str = datetime.date.today().strftime("%Y-%m-%d")
return os.path.join(LOG_DIR, f"{today_str}.json")
def load_logs():
"""Loads existing logs for today, or returns an empty dictionary."""
path = get_today_log_path()
if os.path.exists(path):
try:
with open(path, "r", encoding="utf-8") as f:
return json.load(f)
except Exception as e:
print(f"Error loading logs: {e}")
return {}
return {}
def save_logs(data):
"""Saves the tracking data to today's JSON log file."""
path = get_today_log_path()
try:
with open(path, "w", encoding="utf-8") as f:
json.dump(data, f, indent=4)
except Exception as e:
print(f"Error saving logs: {e}")
# ====================================================================
# TRACKER LOGIC
# ====================================================================
IDLE_THRESHOLD = 60 # seconds
class UsageTracker:
def __init__(self):
# Load any existing data for today
self.app_data = load_logs()
# State variables
self.active_window = "Unknown"
self.active_app = "Unknown"
self.current_app_time = 0
self.total_screen_time = sum(app.get("time", 0) for app in self.app_data.values())
self.total_idle_time = 0
self.is_idle = False
self.running = False
# Thread safety
self.lock = threading.Lock()
self.alert_queue = queue.Queue()
# Focus alert tracking variables
self.last_app = None
self.current_session_time = 0
def get_active_window_info(self):
"""Retrieves the foreground window title and process name."""
try:
hwnd = win32gui.GetForegroundWindow()
if not hwnd:
return "Unknown", "Unknown"
title = win32gui.GetWindowText(hwnd)
_, pid = win32process.GetWindowThreadProcessId(hwnd)
if pid > 0:
process = psutil.Process(pid)
app_name = process.name()
return title, app_name
except Exception:
pass
return "Unknown", "Unknown"
def get_idle_time(self):
"""Calculates how long the system has been idle (no keyboard/mouse input)."""
try:
last_input = win32api.GetLastInputInfo()
current_tick = win32api.GetTickCount()
return (current_tick - last_input) / 1000.0
except Exception:
return 0
def track(self):
"""Main tracking loop running on a background thread."""
self.running = True
last_time = time.time()
while self.running:
current_time = time.time()
elapsed = current_time - last_time
last_time = current_time
idle_time = self.get_idle_time()
with self.lock:
if idle_time > IDLE_THRESHOLD:
self.is_idle = True
self.active_window = "SYSTEM IDLE"
self.total_idle_time += elapsed
else:
self.is_idle = False
win_title, app_name = self.get_active_window_info()
self.active_window = win_title
self.active_app = app_name
if not app_name:
app_name = "Unknown"
if app_name not in self.app_data:
self.app_data[app_name] = {"time": 0, "title": win_title}
else:
self.app_data[app_name]["title"] = win_title
self.app_data[app_name]["time"] += elapsed
self.total_screen_time += elapsed
self.current_app_time = self.app_data[app_name]["time"]
if self.last_app == app_name:
self.current_session_time += elapsed
else:
self.last_app = app_name
self.current_session_time = 0
if self.current_session_time >= 2700:
self.alert_queue.put(self.active_app)
self.current_session_time = 0
if int(current_time) % 10 == 0:
with self.lock:
save_logs(self.app_data)
time.sleep(1)
def stop(self):
self.running = False
with self.lock:
save_logs(self.app_data)
def get_ui_data(self):
with self.lock:
sorted_apps = sorted(self.app_data.items(), key=lambda x: x[1]["time"], reverse=True)
top_5 = sorted_apps[:5]
return {
"active_window": self.active_window,
"active_app": self.active_app,
"current_app_time": self.current_app_time,
"total_screen_time": self.total_screen_time,
"total_idle_time": self.total_idle_time,
"is_idle": self.is_idle,
"top_5": top_5
}
# ====================================================================
# UI LOGIC
# ====================================================================
BG_COLOR = "#0D0D11"
PANEL_COLOR = "#1A1A24"
CYAN = "#00FFFF"
PURPLE = "#B026FF"
RED = "#FF003C"
GREEN = "#00FF66"
TEXT_COLOR = "#FFFFFF"
ctk.set_appearance_mode("dark")
class FuzzuSentinelUI(ctk.CTk):
def __init__(self, tracker):
super().__init__()
self.tracker = tracker
self.start_time = time.time()
self.title("Fuzzu PC Sentinel – Advanced Usage Monitor 2026")
self.geometry("850x650")
self.configure(fg_color=BG_COLOR)
self.grid_columnconfigure(0, weight=1)
self.grid_columnconfigure(1, weight=1)
self.setup_ui()
self.update_ui()
def setup_ui(self):
self.header = ctk.CTkLabel(self, text="FUZZU PC SENTINEL", font=("Courier New", 36, "bold"), text_color=CYAN)
self.header.grid(row=0, column=0, columnspan=2, pady=(25, 5))
self.sub_header = ctk.CTkLabel(self, text="[ ADVANCED USAGE MONITOR 2026 ]", font=("Courier New", 14), text_color=PURPLE)
self.sub_header.grid(row=1, column=0, columnspan=2, pady=(0, 25))
self.clock_var = ctk.StringVar(value="00:00:00")
self.clock_label = ctk.CTkLabel(self, textvariable=self.clock_var, font=("Courier New", 28, "bold"), text_color=TEXT_COLOR)
self.clock_label.grid(row=2, column=0, columnspan=2, pady=(0, 20))
self.active_panel = ctk.CTkFrame(self, fg_color=PANEL_COLOR, border_width=2, border_color=CYAN, corner_radius=10)
self.active_panel.grid(row=3, column=0, padx=20, pady=10, sticky="nsew")
ctk.CTkLabel(self.active_panel, text="LIVE ACTIVE WINDOW", font=("Courier New", 16, "bold"), text_color=CYAN).pack(pady=(15, 5))
self.active_win_var = ctk.StringVar(value="Initializing Sensors...")
self.active_win_label = ctk.CTkLabel(self.active_panel, textvariable=self.active_win_var, font=("Courier New", 14), text_color=TEXT_COLOR, wraplength=350)
self.active_win_label.pack(pady=10, padx=15)
self.idle_var = ctk.StringVar(value="STATUS: ACTIVE")
self.idle_label = ctk.CTkLabel(self.active_panel, textvariable=self.idle_var, font=("Courier New", 16, "bold"), text_color=GREEN)
self.idle_label.pack(pady=(10, 15))
self.time_panel = ctk.CTkFrame(self, fg_color=PANEL_COLOR, border_width=2, border_color=PURPLE, corner_radius=10)
self.time_panel.grid(row=3, column=1, padx=20, pady=10, sticky="nsew")
ctk.CTkLabel(self.time_panel, text="TIME ANALYTICS", font=("Courier New", 16, "bold"), text_color=PURPLE).pack(pady=(15, 5))
self.app_time_var = ctk.StringVar(value="Current App: 00:00:00")
ctk.CTkLabel(self.time_panel, textvariable=self.app_time_var, font=("Courier New", 14), text_color=TEXT_COLOR).pack(pady=8)
self.total_time_var = ctk.StringVar(value="Active Today: 00:00:00")
ctk.CTkLabel(self.time_panel, textvariable=self.total_time_var, font=("Courier New", 14), text_color=TEXT_COLOR).pack(pady=8)
self.idle_time_var = ctk.StringVar(value="Idle Today: 00:00:00")
ctk.CTkLabel(self.time_panel, textvariable=self.idle_time_var, font=("Courier New", 14), text_color=TEXT_COLOR).pack(pady=8)
self.session_time_var = ctk.StringVar(value="Live Session: 00:00:00")
ctk.CTkLabel(self.time_panel, textvariable=self.session_time_var, font=("Courier New", 14), text_color=TEXT_COLOR).pack(pady=8)
self.top_panel = ctk.CTkFrame(self, fg_color=PANEL_COLOR, border_width=2, border_color=CYAN, corner_radius=10)
self.top_panel.grid(row=4, column=0, columnspan=2, padx=20, pady=20, sticky="nsew")
ctk.CTkLabel(self.top_panel, text="TOP 5 TARGETS (TODAY)", font=("Courier New", 16, "bold"), text_color=CYAN).pack(pady=(15, 5))
self.top_apps_labels = []
for _ in range(5):
lbl = ctk.CTkLabel(self.top_panel, text="", font=("Courier New", 14), text_color=TEXT_COLOR)
lbl.pack(pady=4)
self.top_apps_labels.append(lbl)
def format_time(self, seconds):
m, s = divmod(int(seconds), 60)
h, m = divmod(m, 60)
return f"{h:02d}:{m:02d}:{s:02d}"
def update_ui(self):
while not self.tracker.alert_queue.empty():
app = self.tracker.alert_queue.get()
self.show_focus_alert(app)
current_time_str = time.strftime("%H:%M:%S")
self.clock_var.set(f"SYS.TIME // {current_time_str}")
data = self.tracker.get_ui_data()
if data["is_idle"]:
self.active_win_var.set("[ SYSTEM STANDBY ]")
self.idle_var.set("STATUS: IDLE")
self.idle_label.configure(text_color=RED)
self.active_panel.configure(border_color=RED)
else:
self.active_win_var.set(f"App: [{data['active_app']}]\nTitle: {data['active_window']}")
self.idle_var.set("STATUS: ACTIVE")
self.idle_label.configure(text_color=GREEN)
self.active_panel.configure(border_color=CYAN)
self.app_time_var.set(f"Current App: {self.format_time(data['current_app_time'])}")
self.total_time_var.set(f"Active Today: {self.format_time(data['total_screen_time'])}")
self.idle_time_var.set(f"Idle Today: {self.format_time(data['total_idle_time'])}")
session_time = time.time() - self.start_time
self.session_time_var.set(f"Live Session: {self.format_time(session_time)}")
top_5 = data["top_5"]
for i, lbl in enumerate(self.top_apps_labels):
if i < len(top_5):
app_name, app_info = top_5[i]
time_str = self.format_time(app_info["time"])
lbl.configure(text=f"{(i+1):02d}. {app_name:<20} | {time_str}")
else:
lbl.configure(text="")
self.after(1000, self.update_ui)
def show_focus_alert(self, app_name):
self.attributes('-topmost', 1)
messagebox.showwarning("FOCUS ALERT ⚠️", f"⚠ Bro 45 minutes ho gaye. Focus karo.\n\n(Distracting App: {app_name})")
self.attributes('-topmost', 0)
# ====================================================================
# MAIN BLOCK
# ====================================================================
def main():
tracker = UsageTracker()
t = threading.Thread(target=tracker.track, daemon=True)
t.start()
app = FuzzuSentinelUI(tracker)
def on_closing():
tracker.stop()
app.destroy()
app.protocol("WM_DELETE_WINDOW", on_closing)
app.mainloop()
if __name__ == "__main__":
main()
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