Base64 URL Decode
Decode URL-safe Base64.
How to use Base64 URL Decode
Base64 URL Decode — Decode URL-safe Base64 that has no padding. Free to use in D2i DevTools — no account required.
Steps
- Fill in Input. This field is required.
- Click Run and copy the result under the form.
Frequently asked questions
What is Base64 URL Decode used for?
Use it on a JWT part or a token that uses - and _ instead of + and /.
How do I use the free online Base64 URL Decode tool?
Fill in Input. This field is required. Click Run and copy the result under the form.
What can I paste or upload into Base64 URL Decode?
Paste unpadded Base64url. Standard Base64 with + / and = may fail on this page; use Base64 Decode for that.
What output does Base64 URL Decode give me?
The decoded text. A single JWT segment decodes to JSON text, not to a verified token.
Is Base64 URL Decode free, and is my input private?
Yes — Your input is processed in memory for this request only. It is not saved to disk or the database, and it is cleared after the tool finishes.
Should I paste the whole JWT here?
No. Split on the dots and decode the header or payload alone, or use JWT Decode, which splits the parts for you.
Inputs are processed in memory only and are not saved to disk or the database. Data exists only for the duration of your request.