Base64 Encoder & Decoder

Encode plain text or files to Base64, or decode Base64 strings back to their original content. All processing happens in your browser - your data never leaves your device.

Input (text or Base64)

URL-safe Base64 (replace + with - and / with _)

Output

Encode a File to Base64

Upload any file to get its Base64 representation. This is useful for embedding small images directly in CSS or HTML, or for transmitting binary data in text-based formats like JSON.