Base64

base64 • encode • decode

Input

Output

Zmxhc2htYW4=

About this tool

Encode and decode Base64 strings for HTTP headers, data URIs, and debugging binary-safe text transport. Base64 is an encoding scheme, not encryption.

Your input is processed in the browser. We do not upload tool payloads to our servers.

The string flashman becomes Zmxhc2htYW4= in standard Base64.

Zmxhc2htYW4=

Is Base64 secure?: No. Anyone can decode Base64. Never use it to hide secrets.
Does it support Unicode?: Yes, text is encoded using UTF-8 before Base64 conversion.

What Base64 is for, when to use it, and common pitfalls with Unicode and padding.