SellstampBase64 encode decode
Encode text to Base64 or decode Base64 back to text in your browser, with UTF-8 support and the URL-safe variant.
Stays on your device
Everything runs in your browser. Nothing you type is sent to Sellstamp or anyone else.
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How to use it
- Choose encode or decode.
- Paste the text or the Base64.
- Copy the result.
Nothing you paste leaves this page
The conversion runs in this browser tab. Nothing is sent to Sellstamp or anyone else, which matters for configuration files, customer exports and tokens.
UTF-8 throughout
Text is encoded as UTF-8 first, so letters such as š or emoji survive the round trip, unlike the browser’s plain btoa(). Decoding accepts standard and URL-safe Base64, with or without padding, and refuses bytes that are not text, pointing images to the Base64 to image tool.
Questions
Is Base64 encryption?
No. Anyone can decode it. It only turns bytes into safe text.
What is URL-safe Base64?
The same encoding with - and _ instead of + and /, and usually no = padding, so it can sit in a URL or a file name.
Why does decoding say it is binary data?
The Base64 holds a file such as an image, not text. Use Base64 to image for pictures.
Does it handle emoji and accents?
Yes: text is encoded as UTF-8.
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