Base64 Encoder / Decoder

Encode text to Base64, decode Base64 back to text — all in your browser.

Plain text

Base64

BASE64

Base64 Encode

Converts UTF-8 text to Base64 encoding. Handles Unicode characters correctly.

Runs entirely in your browser

All Base64 tools

File encoding, decoding, and image data URIs.

Base64 Encode Text

Encode any text to Base64 instantly in your browser. No upload, no server — runs entirely on your device.

Decode Base64 strings back to plain text in your browser. Instant, private, no upload needed.

Convert any file to a Base64 string in your browser. No upload, no server — works offline.

Image to Data URI

Convert an image to a Base64 data URI for inline embedding in HTML or CSS. Runs entirely in your browser.