Base64 Encode/Decode | Encode and Decode Base64 Text

Base64 Encoder

Encode text to Base64 or decode Base64 back to text. Supports UTF-8 encoding and URL-safe Base64.

URL-safe Base64

Text to Encode

Base64 Output

About Base64

• Base64 encodes binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /).
• URL-safe Base64 replaces + with - and / with _ to avoid URL encoding issues.
• Base64 increases data size by approximately 33%.
• Common uses: embedding images in HTML/CSS, encoding authentication credentials, data URIs.