Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to readable text instantly with this free online Base64 tool.
What Is Base64?
Base64 is an encoding method that represents binary or text data using a limited set of ASCII characters. It is commonly used when data needs to be transported through systems that are designed to handle text.
Base64 is frequently encountered in APIs, email attachments, authentication headers, data URLs, configuration files and software development.
Base64 is an encoding method, not encryption. Anyone with the encoded data can decode it back to its original form.
How to Use the Base64 Encoder & Decoder
Enter Your Text
Type or paste the text you want to encode, or enter Base64 data that you want to decode.
Choose an Operation
Click Encode to Base64 or Decode Base64 depending on what you need.
Check the Result
The processed result will instantly appear in the result box.
Copy the Result
Use the Copy Result button to copy the output to your clipboard.
Base64 Encoding Example
Hello World!
SGVsbG8gV29ybGQh
Base64 Encoder & Decoder Features
Instant Encoding
Convert text to Base64 instantly without waiting for a server.
Easy Decoding
Convert valid Base64 data back into readable text.
UTF-8 Support
Supports Unicode text including Hindi, emojis and other international characters.
Browser-Based
Processing happens directly in your browser without an external API.
Common Uses of Base64
- Encoding data for APIs
- Working with authentication headers
- Encoding data inside URLs and data URLs
- Working with email and MIME data
- Testing encoded strings
- Debugging application data
- Working with configuration files
- Understanding encoded web data
Base64 Encoder & Decoder FAQ
What is Base64 encoding?
Base64 encoding converts binary or text data into a string containing a limited set of ASCII characters. It is commonly used for transferring data through text-based systems.
Is Base64 encryption?
No. Base64 is encoding, not encryption. Base64 data can easily be decoded back to its original representation. It should not be used to protect sensitive information.
Can Base64 encode Hindi and emojis?
Yes. This tool supports UTF-8 text, so Hindi, emojis and other Unicode characters can be encoded and decoded.
Is this Base64 Encoder free?
Yes. The tool is free to use and does not require registration or an account.
Is my data uploaded to a server?
No. Encoding and decoding are performed directly inside your browser using JavaScript.
Why does Base64 make data larger?
Base64 represents binary data using a text-based format. This typically increases the encoded size by roughly one-third compared with the original binary data.