1. 01Choose text or file mode
2. 02Enter or select the content to encode or decode
3. 03Choose standard or URL-safe Base64
4. 04Run the conversion and copy or save the result

For example, encode a UTF-8 phrase to Base64 or decode a received Base64 string back to text.

• Base64 changes representation only and provides no confidentiality or integrity protection
• Large files are limited by browser memory and encoded output is usually larger

• Encode UTF-8 text as Base64
• Decode Base64 found in an API response or log
• Create or read URL-safe Base64
• Convert a local file to a Base64 representation

Text and files are encoded or decoded locally in the browser by default.