Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to plain text instantly.
What is Base64 Encoder/Decoder?
Base64 is a binary-to-text encoding scheme that converts binary data into an ASCII string format. It's widely used in web development, email systems, and data storage to safely transmit and store data that might otherwise be corrupted. This tool allows you to encode plain text to Base64 format or decode Base64 back to readable text.
How to Use This Tool
- Select 'Encode' or 'Decode' mode using the toggle buttons
- Paste or type your text in the input field
- The conversion happens automatically as you type
- Copy the result using the copy button
Common Use Cases
- Encoding images or files for embedding in HTML/CSS
- Safely transmitting binary data in JSON or XML
- Encoding authentication credentials for HTTP Basic Auth
- Storing binary data in databases that only support text
Frequently Asked Questions
What is Base64 encoding used for?
Base64 encoding is primarily used to convert binary data into text format for safe transmission over text-based protocols like HTTP, email (MIME), and JSON. It's commonly used for embedding images in CSS, encoding file attachments, and storing binary data in databases.
Is Base64 encryption?
No, Base64 is NOT encryption. It's simply an encoding scheme. Anyone can decode Base64 data easily. Do not use Base64 to protect sensitive information - use proper encryption instead.
Why does Base64 increase file size?
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 being able to safely transmit binary data as text.