Decodificador de JWT
Paste a JSON Web Token and see its header and payload as readable JSON, with the issue and expiry times. The token is decoded in your browser and never sent anywhere. The tool does not verify the signature.
Funciona en tu navegador. Tus archivos nunca salen de tu dispositivo.
Header
{
"alg": "HS256",
"typ": "JWT"
}Payload
{
"sub": "1234567890",
"name": "Aisha",
"iat": 1750000000,
"exp": 1770000000
}Issued at
6/15/2025, 3:06:40 PM
Expires
2/2/2026, 2:40:00 AM
Status
Expired
This only decodes the token in your browser. It does not check the signature, so never trust a token just because it decodes.
Cómo funciona
- 01Paste your JWT.
- 02Read the header and payload.
- 03Check the expiry time.
Preguntas
Does it verify the signature?
No. It only decodes the token. Verifying needs the secret or public key.
Is it safe to paste a token here?
The decoding happens in your browser and nothing is sent. Still, avoid pasting live production tokens into any site you do not trust.
Is my file uploaded to a server?
No. Everything happens inside your browser on your own device. Your files are never sent to us or anyone else.
Is it free?
Yes. It is free to use, with no signup, no watermark and no daily limit.