Base64 Encoder & Decoder
Instantly encode text to Base64 format or decode Base64 strings back to readable text.
What is the Base64 Encoder/Decoder?
The Base64 Encoder/Decoder is a free, fast online developer utility that allows you to transform standard text into Base64 format, or reverse the process by decoding a Base64 string back into readable text. This is an essential tool for software engineers, web developers, and system administrators who frequently deal with data transmission, APIs, and configuration files.
How to Encode or Decode Base64
Using the tool is incredibly simple:
- Select your mode: Choose whether you want to "Encode" (Text to Base64) or "Decode" (Base64 to Text) using the toggle buttons.
- Enter your data: Paste your text or Base64 string into the input area.
- Process: Click the "Encode" or "Decode" button. The result will instantly appear in the output area.
- Copy the result: Click the "Copy" button to save the output to your clipboard.
100% Secure and Client-Side
When dealing with API keys, authentication tokens, or sensitive configuration data, security is your top priority. ToolDojo's Base64 tool processes everything locally in your browser. Your input is never transmitted over the internet or saved to any server. You can safely encode or decode your most sensitive credentials knowing that the data remains strictly on your own device.
Frequently Asked Questions
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format. It is commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data.
No. All encoding and decoding operations are performed entirely within your web browser using JavaScript. Your sensitive data never leaves your device.
Yes, our tool handles Unicode characters (like emojis or non-English text) correctly by safely encoding them before applying the Base64 transformation.