Does this tool support Unicode and emoji?

Yes. The encoder handles full Unicode text including accented characters, CJK scripts, and emoji by first encoding the text as UTF-8 before applying Base64 encoding.

Absolutely. All encoding happens locally in your browser using JavaScript. Your text is never sent to any server.

Base64 Encode

Encode any text string to Base64. Ready for API payloads, data URIs, email encoding, and config values. Supports full Unicode including emoji, accented characters, and CJK scripts. Everything runs in your browser — your data never leaves your device.

Your files are processed entirely in your browser. Nothing is uploaded to any server.

How to Use Base64 Encode

1
Paste or type your text
Enter your text in the input area. You can paste from clipboard or type directly.
2
See instant results
The tool processes your text automatically as you type. Adjust options if available.
3
Copy the output
Click the copy button to save the result to your clipboard. No data leaves your browser.

Frequently Asked Questions

Next Steps

Decode Base64 strings

Generate a hash of your text

Related Tools

Base64 Decode

Decode Base64 back to readable text.

URL Encode

Encode special characters for safe URL use.

JSON Formatter

Pretty-print and validate JSON instantly.

Related Guides

What Is Base64 Encoding? A Plain-English Guide

A clear explanation of Base64 encoding — what it is, how it works, and where it is used in web development, emails, and APIs.