Base64 Encoder/Decoder
? Frequently Asked Questions
What is Base64 encoding?
Base64 is an encoding scheme that converts binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). It's used to safely transmit binary data through text-based systems like email or JSON.
Why would I need to encode data in Base64?
Base64 is essential for embedding images in HTML/CSS, sending binary files in JSON/XML APIs, encoding authentication credentials, and transmitting data through systems that only support text characters.
Does Base64 increase data size?
Yes, Base64 encoding increases size by approximately 33% because it uses 4 ASCII characters to represent every 3 bytes of binary data. It's a trade-off for text-safe transmission and storage.
Can I encode images and files?
Absolutely! The tool can encode any file type - images, PDFs, audio, video - into Base64 text. This is commonly used for embedding small images directly in HTML/CSS as data URIs.
Is Base64 encryption?
No! Base64 is encoding, not encryption. Anyone can decode Base64 instantly. It's designed for safe data transmission, not security. Never use Base64 alone to protect sensitive information.
Is my data safe and secure?
Yes, absolutely! This tool runs entirely in your browser. All data processing happens locally on your device - nothing is uploaded to our servers. Your files and data never leave your computer, ensuring complete privacy and security.