Base64 Encoder

Encode to Base64

Text Input

File Input

Binary Input

Enter text to encode:

Select a file to encode:

Choose File No file selected

Maximum file size: 5MB

Enter binary data (hex format):

Enter hexadecimal values separated by spaces

Options

URL-Safe Encoding (replace + with - and / with _)

Remove Padding (= characters)

Quick Reference

Example Encodings

Text

                Input: Hello, World!

                Output: SGVsbG8sIFdvcmxkIQ==

HTML Image

API Authentication

                Username:Password user:password

                Base64 Header dXNlcjpwYXNzd29yZA==

About Base64 Encoding

Base64 encoding is a method used to represent binary data in an ASCII string format. This encoding process is commonly used in data transmission, cryptographic applications, and embedding files such as images or documents within text-based formats like JSON or XML.

Developers, security professionals, and system administrators often rely on Base64 encoding to handle data safely when working with email attachments, API requests, or web development. Encoding ensures that data remains intact and is compatible across different systems.

Core Capabilities

Text and Binary Encoding: Convert plain text, files, or binary data into Base64 format.
Efficient Data Handling: Ensures data integrity when transmitting through text-based systems.
File Support: Encode images, documents, and other file types into Base64 strings.
Instant Processing: Fast encoding without requiring additional software installation.
Cross-Platform Compatibility: Works in web browsers, mobile devices, and different operating systems.

Common Use Cases

Encoding Data for Safe Transmission

Some systems do not support binary data directly. Base64 encoding allows developers to safely transmit data through email, APIs, or URLs by converting it into a text-based format.

Embedding Images in HTML and CSS

Base64 encoding enables embedding small images directly into HTML or CSS files without separate file requests, improving performance.

Handling Data in APIs and Web Applications

APIs often require secure transmission of sensitive data. Base64 encoding is commonly used in authentication mechanisms like Basic Authentication headers.

Storing and Transmitting Binary Data

Base64 encoding is used to store or send binary files within text-based formats such as JSON or XML.

              {
                  "file": "U29tZSBiaW5hcnkgZGF0YQ=="
              }
            

Best Practices & Troubleshooting

Verify Input Type

Ensure the correct input format (text, binary, or file) before encoding.

Check String Length

Base64 encoding increases data size by approximately 33% which may impact performance.

Use Base64 Only When Needed

Avoid unnecessary encoding to prevent inefficiency in storage and transmission.

Decode Before Use

If working with encoded data, decode it properly before processing.

Secure Sensitive Data

Base64 is not encryption—use additional security measures when handling sensitive information.