● Encoding
Base64 Encoder
Encode plain text or UTF-8 Unicode strings into Base64.
Processed locally. Your input stays in this browser.
Zero Data Sent1 line•36 chars•38 B
Ctrl/Cmd+Enter run
Base64 Encoded Result
1 line•52 chars•52 B
Read-only output
How It Works
- 1.Enter plain text, source code, or UTF-8 Unicode characters.
- 2.The encoder processes text using TextEncoder and btoa with full UTF-8 support.
- 3.Copy or download the Base64 encoded string.
Common Use Cases
- •Encoding authorization credentials for Basic Auth headers.
- •Embedding small images or data URIs in HTML/CSS.
- •Safely transmitting non-ASCII strings over binary-restricted channels.
Frequently Asked Questions
Does this support emojis and international text?
Yes! It uses TextEncoder to convert UTF-8 characters into bytes before encoding.