Text & encoding
Text to Base64URL
Encode UTF-8 text using URL-safe, unpadded Base64. Nothing you enter leaves your browser.
Your result will appear here.
What this tool does
About the Text to Base64URL
Encode UTF-8 text using URL-safe, unpadded Base64. It is useful for preparing text for another system, inspecting an encoded value, or applying a repeatable cleanup step.
It is useful for preparing text for another system, inspecting an encoded value, or applying a repeatable cleanup step.
How to use it
- Enter text in the input pane. Use the example button if you want to see the expected syntax.
- Review the input for the structure shown in the example. Then select “Encode Base64URL.”
- Inspect the result for warnings or structural differences, then copy it into the destination system.
Practical example
Start with a known input
Try this sample input: Hello? private=yes Select “Encode Base64URL” and compare the result with the source before using it elsewhere.
What to know about the result
- Base64 is an encoding, not encryption. It makes binary or text data easier to transport in text systems but increases the encoded size.
- URL encoding replaces reserved or unsafe characters with percent-encoded bytes so values can travel safely in a URL component.
- Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.
Common questions
Using the Text to Base64URL
Is the Text to Base64URL free to use?
Yes. FormatCalc's Text to Base64URL is free to use with no account required.
Is my data private when I use the Text to Base64URL?
Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.
How do I use the Text to Base64URL?
Paste or type your input, select any available options, and choose Encode Base64URL. You can then copy the result.
What should I check before using the result?
Base64 is an encoding, not encryption. It makes binary or text data easier to transport in text systems but increases the encoded size. URL encoding replaces reserved or unsafe characters with percent-encoded bytes so values can travel safely in a URL component. Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.