Tag file encoding

Powershell

Base64 encoding in PowerShell: encode and decode files and strings

PowerShell can encode and decode Base64 natively using the [Convert] .NET class — no external utilities, no temporary files with PEM headers. Unlike certutil, PowerShell produces clean RFC 4648 Base64 that is directly compatible with web APIs, Linux systems, and…

Zaur Bahramov
March 24, 2026

Guides

certutil -encode and -decode: Base64 encoding files from the Windows command line

certutil is a built-in Windows utility primarily used for certificate management, but it also supports Base64 encoding and decoding of files directly from CMD — no additional software required. It has been available on every version of Windows since Vista…

Zaur Bahramov
April 7, 2025