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Base64 Encoder & Decoder Online Free

Encode and decode Base64 instantly. Fast, secure and 100% free tool.

Base64 Encoder — Codartium
Encode
Decode
Live
By line
codartium tools
codartium tools output.b64
chars
bytes
ratio
read only
PROBLEMS
OUTPUT
TERMINAL
No problems detected.
0 errors
Mode: Encode
Base64
UTF-8
Codartium Tools
SGVsbG8gV29ybGQ=
Hello World
    

What is a Base64 Encoder?

A Base64 encoder converts text or binary data into a Base64 encoded string. It is commonly used to safely transmit data over systems that only support text.

How to use this Base64 Encoder

  1. Paste your text or Base64 string into the input editor.
  2. Select Encode or Decode mode.
  3. Click "Run" or enable Live mode.
  4. Copy the result instantly.

Features

Example of Base64 Encoding

Input: Hello World
Encoded: SGVsbG8gV29ybGQ=
      

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This free online Base64 encoder and decoder allows you to quickly encode text into Base64 format or decode Base64 strings back to plain text. No installation required.