Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to text. Select encode or decode mode and paste your text.

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What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that converts binary data into ASCII text format using 64 different characters (A-Z, a-z, 0-9, +, /). This encoding method is essential for transmitting binary data over text-based protocols and systems that only support text, such as email, JSON, or XML. Base64 ensures data integrity during transmission across different platforms.

How to Encode and Decode Base64

Enter your text in the input field and select either "Encode" to convert plain text to Base64 format, or "Decode" to convert Base64 back to readable text. The tool processes your input instantly and displays the result. Use the copy button to quickly grab the encoded or decoded text. The tool handles standard text, special characters, and maintains data accuracy throughout the conversion process.

Common Uses for Base64

Base64 encoding is widely used for embedding images in HTML/CSS, transmitting data in JSON APIs, encoding authentication credentials, storing binary data in databases as text, and sending attachments in email. Web developers use it for data URIs, API developers use it for token encoding, and system administrators use it for configuration files. It's an essential encoding standard in modern web development.

Why Use Base64 Encoding?

Base64 ensures safe transmission of binary data through text-only systems, prevents data corruption during transfers, enables embedding of binary content in text formats, and provides a standardized encoding method recognized across all platforms. While Base64 increases data size by approximately 33%, it guarantees compatibility and reliability, making it indispensable for data interchange in modern applications.