Base64 Encoder/Decoder

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in sequences of 24 bits that can be represented by four 6-bit Base64 digits. This encoding is commonly used when there is a need to encode binary data, especially when that data needs to be stored and transferred over media that are designed to deal with text.

Common Use Cases for Base64 Encoding

• Encoding images for data URLs in CSS and HTML
• Transmitting binary data over text-based protocols like email or HTTP
• Storing complex data in URLs or cookies
• Embedding fonts and other assets in stylesheets
• API authentication tokens and keys

How to Use This Base64 Tool

Our Base64 encoder/decoder tool is designed for maximum ease of use. Simply select whether you want to encode or decode, paste your content, and get instant results. You can upload text files for encoding, copy results with one click, and download the output as a file. All processing happens locally in your browser for maximum security and privacy.

Features

• Instant Base64 encoding and decoding
• File upload support for easy text encoding
• One-click copy to clipboard
• Download results as text files
• Real-time character counting
• Dark/light theme support
• 100% client-side processing - your data stays private