⚡ SimpleScreenCapture - Minimal Screen Recorder with Area Selection

Lightweight. Clean. No bloat.
A fully Python-based screen recording tool with area selection — built from scratch as an ultra-light alternative to OBS Studio.
No GPU overload. No overheating. Just what you need: pick an area and start recording. DEMO VIDEO THAT HOW IT WORKS : "https://youtu.be/uU-oeBjNfHg"

💡 Why I Built This

I was frustrated with the complexity and performance issues of heavy tools like OBS Studio.
Even for simple recordings, OBS would eat RAM, stress my CPU, and heat up the laptop like a furnace.
So I asked myself:

“Can I build a minimal recorder with just Python — fast, simple, and focused?”

This tool was born from that curiosity. I wanted to understand how recording actually works,
how area selection can be done visually, and how to build a full GUI using Tkinter — and most importantly,
do it all in a way that's resource-friendly and intuitive for users.

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🚀 Features

• 🎯 Drag-and-Select Screen Area
  Beautiful on-screen interface to select any part of the screen before recording.

• 🖥️ Real-Time Recording
  Capture your screen directly with smooth FPS settings (default 60 FPS).

• 💾 Save as MP4
  Automatically encodes and saves your video using cv2.VideoWriter with .mp4 output.

• 🔧 Simple GUI
  Built with Tkinter, the GUI allows you to select FPS, filename, and monitor the recording status.

• 🧠 Multithreading
  Recording happens on a separate thread to keep the GUI responsive and clean.

• 🛑 Start / Stop Anytime
  Instantly begin or end recordings. No long setups.

• 📦 No External Recorder Dependency
  No OBS. No FFMPEG install required. Just Python, OpenCV, NumPy, and MSS.

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🔍 Tech Stack

Tool	Role
Tkinter	GUI for user input and controls
OpenCV	Handles area selection + video writing
MSS	Grabs screen frames efficiently
NumPy	Frame processing
Threading	Keeps GUI responsive during recording

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🎬 How It Works

1. Launch the GUI
2. Click "Select Area" → Drag and select any region of your screen.
3. Set your FPS and Filename
4. Click "Start Recording" and your screen is being recorded!
5. Click "Stop Recording" anytime to save the video.

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🧠 Who Should Use This?

• Students who want to quickly record a demo or project screen
• Developers tired of heavy recorders like OBS
• Anyone who just needs simple screen recording without GPU/RAM pressure

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🧪 My Curiosity

Honestly, this was less about recording and more about learning:

• How does cv2.VideoWriter really work?
• How can you grab live screen frames?
• How to manage threads in GUI apps?
• How to make the user feel like it's really interactive?

This project helped me explore all of that.

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⚙️ Requirements

• Python 3.7+
• opencv-python
• numpy
• mss

Install with:

pip install opencv-python numpy mss