Developer
Processed locally in your browserBase64 Encode
Convert plain text and Unicode characters into standard RFC 4648 Base64 strings with full UTF-8 encoding support.
How to Use Base64 Encode
1
Paste or type the text you want to encode into the input box.
2
The Base64 encoded string is generated instantly.
3
Click 'Copy' to use the result in code, headers, or URLs.
What This Tool Does
Converts UTF-8 character bytes into 6-bit index representations using ASCII characters A-Z, a-z, 0-9, +, and /.
Common Use Cases
Encoding Basic Auth headers (username:password) for API testing.
Embedding small text snippets or inline data into HTML/CSS.
Preparing binary-safe strings for transmission over text protocols.
Privacy & Local-First Processing
Processed locally with browser window.btoa and TextEncoder APIs. Zero data is sent to any server.
Frequently Asked Questions
Does it support emojis and non-English characters?
Yes. Our encoder uses UTF-8 byte serialization, ensuring full compatibility with emojis, accented letters, and non-Latin scripts.