Darkroom Toolkit is a mobile app designed to simplify analog film processing and darkroom printing. It helps you work more efficiently and stay consistent with customizable timers, chemistry recipes, conversion utilities, and more.
Darkroom Toolkit is available for both iOS and Android. Check the app store for information about compatibility with your specific device.
Darkroom Toolkit is being actively developed and we are always looking for ways to improve the app. If you have feature requests, please let us know!
The development times and instructions for processing film come from each manufacturer's data sheets. The steps included reflect their recommendations.
Consider these steps a starting point for finding your ideal processing method. We encourage testing and creating a custom process that matches your preferences.
Darkroom Toolkit includes all officially published processing times from major manufacturers, but is not an exhaustive repository of every possible film and developer combination.
Resources like The Massive Dev Chart, which includes years of curated user submissions, is better suited to finding starting points for unofficial, discontinued, or obsolete films.
If you can't find your specific combination, using times for a similar film (same ISO and general characteristics) can provide a good starting point for testing.
If you experience issues, try the following.