Base64 Encoder/Decoder
Convert text to Base64 and decode Base64 to text with this free online tool. Supports file encoding, URL-safe Base64, and handles special characters.
Features
Text & File Support
Encode/decode text and files with support for various formats and encodings.
URL-safe Base64
Generate URL-safe Base64 strings perfect for web applications and APIs.
Bulk Processing
Handle large amounts of data with efficient processing and real-time conversion.
How It Works
Encoding Process
Base64 encoding converts binary data into a set of 64 characters (A-Z, a-z, 0-9, +, /) making it safe for transmission across systems that handle text data. The encoder adds padding (=) when necessary to ensure the output length is a multiple of 4 characters.
Decoding Process
The decoder converts Base64 strings back to their original form by reversing the encoding process. It handles both standard and URL-safe Base64, automatically detecting and removing padding characters.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data using a set of 64 characters. It's commonly used to transmit binary data over systems designed to handle text.
When should I use Base64?
Use Base64 when you need to send binary data through text-based systems, embed images in HTML/CSS, or include binary data in JSON. It's also useful for encoding data that contains special characters.
What's URL-safe Base64?
URL-safe Base64 replaces the standard + and / characters with - and _ respectively, making the encoded string safe to use in URLs without additional encoding.