Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings quickly, accurately and directly in your browser.
Encode to Base64
Convert normal text into a Base64 encoded string.
Decode Base64
Convert a Base64 string back into readable text.
Quick Tools
Move encoded or decoded content between the two panels.
What is Base64?
Base64 is an encoding method that represents binary or text data using a limited set of characters. It is commonly used in APIs, web development, data URLs, email systems and configuration files.
Your data stays in your browser
Encoding and decoding are performed locally using your browser. Your text does not need to be uploaded to a niDar Tools server.
Encode and decode in seconds
Choose the operation you need, enter your content and get an instant result.
Enter Content
Type or paste text or Base64 data into the appropriate input box.
Process
Select Encode or Decode to process your content instantly.
Copy or Download
Copy the result to your clipboard or save it as a text file.
Where Base64 is useful
Web Development
Encode data for APIs, web applications and data URLs.
Authentication
Base64 is commonly encountered in HTTP and authentication related data.
Data Transfer
Represent binary data as text for systems that expect textual content.
Developer Testing
Quickly test Base64 values while developing applications and APIs.
Base64 basics
Encoding
Converts readable data into Base64 representation.
Decoding
Converts valid Base64 data back into its original text.
Character Set
Standard Base64 uses letters, numbers, +, / and = padding.
Privacy
This tool performs normal text encoding and decoding locally in your browser.
Ready to work with Base64?
Enter your data above and process it instantly.