Base64 Encoder & Decoder
Quickly convert text or files to Base64 format or decode back.
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-64 representation.
Simply put, it converts binary data (like an image) into a text string, making it safe to transmit over media that are designed to deal with textual data.
How to use this tool?
- Select Mode: Choose between “Encode to Base64” or “Decode from Base64”.
- Input Data: Paste your text or Base64 string into the input box.
- Convert: Click the button, and the result will appear instantly.
Common Use Cases
- Embedding Images: Embedding small images directly into CSS or HTML code to reduce HTTP requests and speed up web page loading.
- Data Transmission: Transmitting binary data in HTTP requests where special characters might otherwise cause parsing errors.
- Simple Obfuscation: While not encryption, it is often used to hide plain text information to prevent immediate visual recognition.
Frequently Asked Questions (FAQ)
Is Base64 secure?
No, Base64 is not encryption. It is simply an encoding scheme. Anyone can easily decode a Base64 string back to its original content. Therefore, never use Base64 to protect passwords or sensitive information.
Why is the Base64 string larger than the original?
Base64 encoded data is approximately 33% larger than the original binary data. This is because it uses 4 characters to represent every 3 bytes of data.