This is a standalone Qt GUI tool for color bands on through-hole resistors and number codes on SMD parts. It supports 3, 4, 5, and 6 band resistors, as well as standard SMD codes, including the EIA-96 standard.

3 or 4 Bands	5 Bands
6 Bands	SMD

• Decode the resistance and tolerance, as well as the Temperature Coefficient of Resistance (for 6 band resistors).
• Can parse SMD codes¹, including the EIA-96 standard.
• Respects your system's Qt theming.

PySide6

pip install PySide6

This program is available as an AUR package, AppImage, or Windows executable.²
Alternatively, install and run from source:

git clone https://github.com/VoxelCubes/ResistorDecoder
cd ResistorDecoder
python main.py

1. Tolerance values are only standardized for EIA-96 codes and codes with short underlines. Check the manufacturer's datasheet if the tolerance is critical for your application.
2. Flatpak and Snap packages are not available. If someone knows how to make them, or other packaging formats, help is much appreciated.