Welcome to the Helpedia Online Tools page!

Please choose one of the tools below.

Base64 Encoder - Encodes a text to its Base64 representation

Base64 Decoder - Decodes a text encoded using Base64 to its original form

MD4 Calculator - Determines the MD4 hash code for a certain text

MD5 Calculator - Determines the MD5 hash code for a certain text

ISBN-10/ISBN-13 Converter - Converts between ISBN-10 and ISBN-13