Base64 Encode / Decode
Convert text to and from Base64. Free, no sign-up, files stay on your device.
🔒 100% private — processing happens in your browser. Nothing is uploaded.
Base64 encode and decode online
- Paste text and click Encode, or paste Base64 and click Decode.
- Tick URL-safe for tokens and links.
- Copy the result.
Supports Unicode (emoji, Cyrillic, Chinese…). Handy for developers working with APIs, data URLs and email headers. Runs locally — nothing is sent anywhere.