Code Flux

Base64 Hub

Encode and decode Base64 for text strings and images.

TextBase64

What is Base64 Hub?

Base64 Hub is a versatile encoding tool that converts data to and from Base64 format. Base64 is a binary-to-text encoding scheme commonly used to embed images in HTML/CSS, transmit binary data through text-based protocols like JSON or XML, and encode authentication credentials. This tool handles both text and image encoding, making it essential for web developers working with APIs, emails, or data URIs.

How to Use

  1. Choose 'Text' mode for string encoding/decoding or 'Image' mode for images
  2. For text: Enter your string and click 'Encode' or 'Decode'
  3. For images: Upload an image to get its Base64 string, or paste Base64 to preview
  4. Copy the result to use in your code or API requests

Common Use Cases

  • Encoding images for embedding in HTML or CSS
  • Creating data URIs for inline resources
  • Encoding API authentication tokens
  • Transmitting binary data through JSON APIs
  • Decoding Base64-encoded email attachments

Frequently Asked Questions

Base64 converts binary data into ASCII text, making it safe to transmit through systems that only support text (like email or JSON). It's commonly used for embedding images in HTML/CSS, encoding authentication tokens, and transmitting files through APIs.
No! Base64 is an encoding scheme, not encryption. Anyone can easily decode Base64 text back to its original form. Never use Base64 alone to protect sensitive information.
Base64 encoding increases data size by approximately 33% because it converts every 3 bytes of binary data into 4 ASCII characters. This is the trade-off for compatibility with text-only systems.
Yes! Switch to Image mode to upload any image file. The tool will generate a complete data URI that you can use directly in HTML img tags or CSS background-image properties.
The tool supports all common image formats including PNG, JPEG, GIF, WebP, and SVG. The generated data URI automatically includes the correct MIME type.

Privacy Guarantee

We process all data directly in your browser. Nothing is sent to our servers. Your data stays on your device, ensuring complete privacy and security. Feel free to use this tool with sensitive information.