Encode and decode Base64 strings instantly without uploading your data.
Encode or decode Base64 strings instantly without uploading your data to any server.
Paste your text.
Choose Encode or Decode.
Copy the converted result.
Unlimited usage
Works completely in your browser
Fast conversion
Privacy focused
Input
Hello World
Output
SGVsbG8gV29ybGQ=
Base64 Encoder / Decoder transforms, validates or analyzes the data you provide according to the operation described on this page. The output should be reviewed before it is used in production code or security-sensitive workflows.
Generated or transformed output should be reviewed before deployment. Do not paste secrets, private keys, passwords or other sensitive credentials into a tool unless its privacy behavior explicitly supports that use.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
Answers about how the tool works, its limitations, and how your information is handled.
Base64 converts binary or text data into ASCII characters for safe transmission across systems.
No. Base64 is an encoding method, not an encryption technique.
No. Encoding and decoding happen entirely in your browser.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
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