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
- 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.
- Flatpak and Snap packages are not available. If someone knows how to make them, or other packaging formats, help is much appreciated.