Base64 Encoder/Decoder

Encode text or files to Base64, decode Base64 strings back. URL-safe mode, file uploads, and conversion history.

URL-safe mode(- instead of +, _ instead of /)

Input

Base64 Output

📝 What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for encoding images in data URLs, transmitting binary data in JSON/XML, and embedding resources in web pages.

🔗 URL-Safe Mode

Standard Base64 uses + and / characters which need escaping in URLs. URL-safe Base64 replaces them with - and _, making it safe for query parameters and filenames.

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