This tool generates XOR filters for commons files with p14416 set. The filters are automatically updated on regular intervals This is meant to be used with https://commons.wikimedia.org/wiki/User:Bawolff/nsfw.js There are 2 filter types. xor8 has a false positive rate of 2^-8 = 0.4%. xor16 is twice as big but has a false positive rate of 2^-16 = 0.0015%. Filters are in pyfusefilter serialization format. Source code of this tool is the process.py file. All code is MIT licensed