Base64 Encoder
What is Base64 Encoding?
Base64 encoding is a method of converting binary data into text format using 64 different ASCII characters (A-Z, a-z, 0-9, +, /). This encoding allows binary data to be safely transmitted through text-based protocols that might not handle binary data correctly.
Why use Base64 encoding?
📧 Email Safety
Encode attachments and special characters in email messages to ensure they transmit correctly through email servers.
🌐 URL Parameters
Safely include binary data or special characters in URL parameters without breaking the URL structure.
🖼️ Data URLs
Embed images directly in HTML or CSS using data URLs, reducing HTTP requests and improving page load times.
🔐 API Integration
Send binary files through REST APIs that only accept text data, such as JSON-based web services.
📱 Mobile Apps
Transfer images and files between mobile apps and servers using text-based communication protocols.
🛡️ Legacy Systems
Work with older systems that don't support modern binary transfer methods or have strict text-only requirements.
How it works: Base64 encoding takes groups of 3 bytes (24 bits) and converts them into 4 ASCII characters. This results in approximately 33% size increase, but ensures safe text transmission.
Important: Base64 is encoding, not encryption. Anyone can easily decode Base64 text. Don't use it to protect sensitive information - use proper encryption instead.
Pro Tip: Base64 is perfect for embedding small images in CSS or HTML. For larger files, consider using proper file upload mechanisms to avoid bloating your code.