List Grouping Tool allows you to input a list or read list data from a txt file, then group it either by default sort order or randomly grouped the list. You can specify the number of groups and configure other settings of the list as you needed.
Text Diff is a useful online tool that allows you to compare the differences between two text files or fragments. You can use it to find and merge changes, detect errors, or simply check for consistency.
String Obfuscator is a useful free online tool that could obfuscate a string (like a secret, an IBAN, or a token) to make it shareable and identifiable without revealing its content.