1. A computing device comprising: a processing system; one or more modules operable at least in part via hardware of the processing system to implement an integrated development environment (IDE) configured to: ascertain one or more languages selected by developer for translations of an application under development using the IDE; and during a build of the application via the IDE, create updated localization files for each of the selected languages in a designated file format established to facilitate translations used to generate a single multilingual resource file for the application, wherein creation of the updated localization files comprises: producing a log file in a system format that describes resources for the build of the application; parsing the log file to identify and extract localizable resources in the build; converting the extracted localizable resources to generate a source resource file for the build in the designated file format; and merging the source resource file with target localization files included in the project for the one or more languages to form localization files that are updated for the build.