Download 2021 Arduino Ide 1.8.57 For Windows Now

: Highly reliable for older libraries and hardware.

Last updated: 2025 (Instructions valid for Windows 10, 11, and future LTSC editions). Download Arduino IDE 1.8.57 for Windows

After you download Arduino IDE 1.8.57 for Windows and install it, you must configure it for your specific board. : Highly reliable for older libraries and hardware

Starts faster than the newer 2.x versions on older hardware. Download Arduino IDE 1.8.57 for Windows

After installation, verify that Arduino IDE 1.8.57 has been installed correctly:

After installing, launch Arduino IDE from the (or desktop shortcut, if created). Here’s how to set it up correctly.