Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings instantly. Perfect for developers and data processing.
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Free Base64 Encoder & Decoder
Our Base64 encoder and decoder tool allows you to quickly convert text to Base64 encoding or decode Base64 strings back to plain text. Perfect for developers, data processing, and API integration tasks.
How to Use the Base64 Encoder & Decoder
Select whether you want to encode or decode using the mode buttons. Enter your text or Base64 string in the input field, or upload a file. Click the process button to convert. The result appears instantly in the output field. Use the copy button to copy the result or download it as a file.
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used in email, APIs, and data transmission where binary data needs to be represented as text. Base64 encoding increases the size of data by approximately 33%.
Key Features
- Text Encoding: Convert plain text to Base64 format
- Text Decoding: Convert Base64 strings back to plain text
- File Upload: Encode files directly to Base64
- UTF-8 Support: Handles special characters and Unicode
- Copy to Clipboard: One-click copying of results
- Download Option: Save results as files
- Character Count: See input and output sizes
- No Limits: Process any size of data
Common Uses
Base64 encoding is used in many applications including email attachments, API authentication, data URLs in HTML/CSS, and secure data transmission. Our tool makes it easy to encode and decode without needing command-line tools or programming knowledge.
Frequently Asked Questions
Why is Base64 encoding used?
Base64 encoding converts binary data into a text format that can be safely transmitted over text-only channels like email or HTTP. It's also used in data URLs, API authentication, and other applications where binary data needs to be represented as text.
Does Base64 encoding provide security?
No, Base64 is not a security measure. It's simply an encoding scheme. Anyone can easily decode Base64 strings. For security, use encryption algorithms like AES or RSA instead.
Can I encode files larger than my browser memory?
The tool works with files that your browser can handle. For very large files (over 100MB), you may experience performance issues. For production use, consider server-side encoding.
Is my data stored or transmitted?
No, all encoding and decoding happens entirely in your browser. Your data is never sent to our servers or stored anywhere. Your privacy is completely protected.