Software · Development

gResistor

Resistor color codes calculator.

Completely free
Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: LGPL-3.0+ — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Stefano Prina
Latest version: 3.2.5 (15 June 2022)
Latest activity: 2 November 2025
Source code: gresistor.stethewwolf.eu

At a glance

All of gResistor is free: no feature is locked behind a paid plan, and its code is open.

Its licence (LGPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

To allow for identification, resistors are usually marked with colored bands. Often refered to as color codes, these markings are indicative of their resistance, tolerance and temperature coefficient. gResistor helps you translate resistor color codes into a readable value. All you have to do is watch the colors on the resistor and then enter them in the program. As you enter colours you'll see that the resistor value is changing accordingly.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 9 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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