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🍓 Raspberry Pi

GPIO Pinout Reference

Interactive Raspberry Pi GPIO pinout. Click any pin. Works for Pi 4, 3, and Zero.

GPIO 3.3V 5V GND I2C SPI UART PWM
👆 Click any pin for details

🐍 Quick Python Example

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)  # GPIO17 = Pin 11

GPIO.output(17, GPIO.HIGH)  # LED ON
time.sleep(1)
GPIO.output(17, GPIO.LOW)   # LED OFF

GPIO.cleanup()
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📖 About GPIO Pinout Reference

GPIO Pinout Reference is a free, browser-based tool designed for developers, designers, writers, and everyday users. Interactive Raspberry Pi GPIO pinout diagram. Click pins to see function, voltage, and usage. Free online GPIO reference for Raspberry Pi 4/3/Zero. Everything runs locally in your browser using JavaScript — no data is ever sent to a server, making it completely private and secure. The tool is designed to be intuitive and beginner-friendly while still offering advanced features for power users. It loads instantly with no installation required and works offline once loaded. Use it as often as you need — there are no daily limits, no watermarks, and no hidden fees.

How to Use

  1. Enter or paste your data in the input area above.
  2. Adjust settings and options to match your needs.
  3. View the results instantly — they update in real-time.
  4. Copy, download, or share your output with one click.

❓ Frequently Asked Questions

Is GPIO Pinout Reference free to use?

Yes! GPIO Pinout Reference is completely free with no signup required. It runs entirely in your browser — your data never leaves your device.

How do I use GPIO Pinout Reference?

Enter your data in the input fields above. Results are generated instantly in your browser. You can copy, download, or share the output.

Is my data safe with GPIO Pinout Reference?

Absolutely. GPIO Pinout Reference runs 100% client-side in your browser using JavaScript. No data is uploaded, stored, or shared with any server. Your privacy is guaranteed.

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