🔐 Base64 Encoder / Decoder

The Base64 Encoder / Decoder encode and decode base64 strings. It runs entirely in your browser — nothing is sent to a server.

Steps

1. Paste or type your text in the Input box above.
2. Click Run Base64 Encoder / Decoder (or use the Load sample button to try it first).
3. Copy the result with one click.

Tips

• Your text stays on your device. We never upload or store it.
• The tool works offline once the page has loaded.
• Need to do this often? Bookmark this page and come back anytime.

About the Base64 Encoder / Decoder

Convert text to Base64 and back. Works with UTF-8 characters including emojis and accented letters.