Paste text or a Base64 string into the input area.
Local Base64 conversion
탭을 오가지 않고 텍스트를 변환하세요.
Encode UTF-8 text to Base64 or decode it locally in your browser, with a URL-safe option for transport strings.
* Nothing is uploaded. Base64Box processes text in this browser tab only.
Local Base64 conversion
Convert transport text without sending it away
Choose URL-safe output when the value must travel through URLs or filenames.
Copy or download the result for your request, config, or test fixture.
FAQ
What does Base64Box protect?
Is Base64 encryption?
No. Base64 changes representation so bytes can travel through text channels; it does not hide the content.
Does Base64Box upload my input?
No. Conversion runs with browser-native APIs and the input is limited to 64 KiB.