jKeys – Online .properties file validator and comparator

jKeys detects repeated keys with the same or different value, incorrect values and blank lines in your .properties files. Download the fixed file, reordering the keys or keeping the original order.

jKeys lets you compare several .properties files, detecting the keys that differ between files, letting you know which keys are missing from one file or another, and letting you review the texts that correspond to a key across the files being compared.