Base64 Encoder / Decoder
Use this free Base64 Encoder and Decoder tool to convert text into Base64 format or decode Base64 strings instantly. Developers often use Base64 encoding when working with APIs, authentication headers, tokens, and data transmission.
Base64 Encoding Example
Below is a simple example showing how Base64 encoding works.
Input Text
Base64 Encoded Output
This means the original string has been converted into a Base64 encoded format that can safely travel through systems that only support text data.
What is Base64 Encoding
Base64 is a binary-to-text encoding method used to convert binary data into a text format. This allows data to be transmitted safely through systems that only support textual content such as JSON APIs, HTTP headers, and email systems.
When data is encoded using Base64, the original binary data is converted into a string containing letters, numbers, and symbols. This encoded string can later be decoded back into its original form.
Developer Use Cases
- Encoding API authentication credentials.
- Debugging Base64 encoded payloads returned from APIs.
- Working with JWT tokens and authorization headers.
- Embedding images or files in HTML and CSS using Base64.
- Transferring binary data over systems that only support text.
How to Use This Base64 Tool
- Paste text into the input box.
- Click Encode to convert the text into Base64 format.
- Paste a Base64 string and click Decode to convert it back to text.
- Use the Copy button to copy the result.