Base62.Conversion

Base conversion is an approach commonly used for URL shorteners. Base conversion helps to convert the same number between its different number representation systems.

The conversion table is [0-9a-zA-Z]:

private const string BASE62 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

The value 999 is converted into g7 as:

999 = 16 * 62^1 + 7 * 62^0 = "g7"

where g and 7 are the 16th and 7th elements of the BASE62.

Usage

Install:

NuGet\Install-Package Base62.Conversion -Version 1.0.0

Use:

var encoded = Base62Converter.Encode(2009215674938); // zn9edcu

var decoded = Base62Converter.Decode("zn9edcu"); // 2009215674938

References:

• Base62 table
• Base62 Encoder Decoder online tool
• https://www.nuget.org/packages/Base62.Conversion