Free Base64 Encode Decode Online Tool
This free, fast, and ad-free Base64 encode decode tool lets you convert text, files, and strings to Base64 or decode Base64 to readable text. No login, no download, no data stored.
Example
Hello World
SGVsbG8gV29ybGQ=
What is Base64 Encoding & Decoding
Base64 encoding is a method of converting binary data into ASCII text format. It's commonly used to encode binary data in email attachments, URLs, JSON responses, and database storage. Base64 decoding reverses this process, converting the encoded string back to its original binary or text representation.
How to Use This Base64 Tool
Select Mode
Choose between Encode or Decode mode using the toggle switch at the top.
Enter Content
Paste your text, string, or file content into the input box. You can also upload a text file directly.
Copy Result
The result appears instantly. Use the copy button or download it as a text file.
Supported Formats & Use Cases
Plain Text
Encode or decode any plain text string to Base64 format.
JSON
Convert JSON objects to Base64 for API requests and data storage.
URL
Encode URL-safe Base64 strings for web applications.
PHP
Generate PHP base64_encode() code snippets for your scripts.
Java
Create Java Base64 encoding snippets using java.util.Base64.
Python
Generate Python base64 encoding code for your applications.
Privacy & Security
100% Private & Secure
- All processing is done locally in your browser.
- Your data is never uploaded to any server.
- No data is stored or logged anywhere.
- No login or registration required.
FAQ About Base64 Encode Decode
How to use this base64 decode online tool?
Simply paste your Base64 string into the input box, select "Decode" mode, and the tool will instantly convert it back to readable text. You can also upload a file containing Base64 content.
Can I convert JSON to Base64 online?
Yes! Select "JSON" from the format dropdown, then paste your JSON content and encode it. The tool will convert your JSON object to a Base64 string that can be used in APIs, databases, or other applications.
Is this base64 tool free for developers?
Yes, this Base64 encode decode tool is completely free for developers and all users. It has no ads, no login requirements, and no usage limits. You can use it as often as you need for your development projects.
How to decode Base64 strings for PHP?
Select "PHP" from the format dropdown when encoding, and the tool will generate PHP code using base64_encode(). For decoding, select "PHP" mode and paste your Base64 string - the tool will decode it back to the original text.
Does this tool support Python Base64 decoding?
Yes! Select "Python" from the format dropdown, and the tool will generate Python code using the base64 module. The generated code uses base64.b64encode() and base64.b64decode() functions which are part of Python's standard library.
Want to Master Base64 Encoding?
Explore our comprehensive guide on Base64 encoding rules, common mistakes, and best practices for developers.
📖 Learn More About Base64 Encoding & Decoding