GUID ⇄ Short GUID Converter

Free online tool to convert between 36-character GUIDs and 22-character short GUIDs. URL-safe, .NET Guid.ToByteArray()-compatible base64.

Convert Long GUID to Short GUID

Short GUID format: 22 chars, URL-safe base64 ([A–Z a–z 0–9 _ -]), no padding.

Convert Short GUID to Long GUID

Compatible with Convert.ToBase64String(Guid.ToByteArray()) (with +/-_ and padding removed).