Base64, JWT, and JSON Validator - FAQ
Common questions
1
Do you upload my input text or tokens?
No. Everything runs in your browser and stays on your device.
2
Does JWT decode mean token is trusted?
No. Decoding only reads visible header/payload data. Signature verification is not performed.
3
Why might Base64 decode fail?
Input may contain invalid characters, invalid padding/length, or bytes that are not valid UTF-8 text.