Free Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings instantly. Client-side processing with JavaScript.
Encode to Base64
0 characters
Encoded Result (Base64)
Click "Encode" to generate Base64 string
Decode from Base64
0 characters
Decoded Result (Plain Text)
Click "Decode" to reveal plain text
About Base64 Encoding
Base64 is used to encode binary data into an ASCII string format. It's commonly used for embedding images in HTML/CSS, transmitting data in URLs, and storing complex data in text formats. This tool processes everything locally in your browser — no data is sent to any server.
Note: Decoding invalid Base64 will show an error. Always ensure your input is properly encoded.