Base64 Converter

💡 About This Tool

Instantly encode text to Base64 or decode Base64 strings back to plain text. Essential for generating Basic Auth headers, debugging encoded payloads, or handling binary data in text-based protocols.

📘 Usage Tips

• UTF-8 Safe Correctly handles multi-byte characters (e.g., emojis, non-Latin scripts) using proper URI component encoding. No more garbled text.
• Local Processing All encoding/decoding happens client-side. Your data never leaves the browser, ensuring security for sensitive tokens.
• Bidirectional Quickly toggle between encoding and decoding without page reloads.

🧐 Frequently Asked Questions

Q. What is Base64?

A. A binary-to-text encoding scheme representing binary data in an ASCII string format (A-Z, a-z, 0-9, +, /). Commonly used in Data URIs and email attachments.

Q. Why the "=" padding?

A. Base64 encodes data in 4-character blocks. If the input length isn't divisible by 3 bytes, "=" characters are added as padding to complete the final block.

📚 Trivia

Base64 encoding increases data size by approximately 33%. While useful for embedding small assets (Data URIs) to reduce HTTP requests, it is inefficient for large files.