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Encoding Tools
Base64URL Decoder
Decode padded or unpadded Base64URL data into Unicode text.
Browser workspace
⌘ / Ctrl + Enter to runBase64URL Decoder
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Privacy-first processing
Your data stays private. All processing happens locally in your browser. Nothing is uploaded to our servers.
Why use Base64URL Decoder?
Decode padded or unpadded Base64URL data into Unicode text. Processing stays in the current browser tab so the source remains private.
Padded and unpadded support
Strict URL-safe validation
Unicode-safe decoding
How to use it
- 1
Paste Base64URL text.
- 2
Select Decode.
- 3
Review or copy the decoded value.
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Common use cases
Decode Base64URL API fields
Example
RGV2VG9vbHMgSHViIOKckwFrequently asked questions
What does Base64URL Decoder do?
Decode padded or unpadded Base64URL data into Unicode text. Processing stays in the current browser tab so the source remains private.
Is my base64url input uploaded?
No. Your base64url input is processed locally by browser APIs and is never sent to DevTools Hub.
Can I use Base64URL Decoder without an account?
Yes. Base64URL Decoder is free, works without registration, and supports modern desktop and mobile browsers.
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