Base64 Encoder & Decoder

Instantly convert plain text to Base64 format or decode it back safely.

Plain Text
Base64 String

Best Free Online Base64 Converter

Base64 encoding is universally used by developers to convert binary data or special text characters into an ASCII string format. This ensures that the data remains intact without modification during transport over networks, such as embedding images in HTML/CSS, sending email attachments via MIME, or encoding basic API authentication credentials.

Our Premium Base64 Encoder & Decoder allows you to perform these conversions instantly. It fully supports UTF-8 characters, meaning special symbols and non-English text will encode and decode flawlessly. For your privacy and security, the conversion is handled purely via client-side JavaScript. Your text strings are never transmitted over the internet or saved to our databases.