Base64 Encoder / Decoder
Encode plain text to Base64, or decode Base64 back to text.
Variant:
Plain Text
Base64 Output
How It Works
Base64 encodes binary or text data as a string of ASCII characters using 64 printable symbols
(A–Z, a–z, 0–9, +, /). It is commonly used to embed binary data in JSON, HTML, or email
payloads. This tool uses the browser's built-in btoa / atob APIs and
supports Unicode text.