Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to plain text.
Encode and decode URLs with percent encoding.
URL encoding (percent encoding) converts characters that cannot be used in URLs — such as Japanese, spaces, and special symbols — into a safe %XX format. It is commonly used when submitting web forms or making API requests.
No. All processing happens entirely in your browser.
Yes. All Unicode characters including Japanese are supported and converted to percent-encoded format (%XX).