Base64 Encode / Decode
Encode and decode Base64 strings online for free. Convert text to Base64 and back instantly.
关于此工具
Encode any text to Base64 or decode Base64 strings back to plain text instantly in your browser. Useful for APIs, data URIs, and web development workflows.
如何使用
Enter Text
Type or paste the text or Base64 string.
Encode or Decode
Click Encode to convert to Base64, or Decode to convert back.
Copy Result
Copy the output to use in your project.
使用场景
API Development
Encode credentials and data for HTTP headers and API requests.
常见问题
Is my data sent to a server?
No. All encoding and decoding happens locally in your browser.