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Ultimate JWT Tool
๐
Ultimate JWT Tool
Decode ยท Generate ยท Verify (HS/RS/ES) ยท JWE Encrypt/Decrypt ยท WebCrypto ยท PEM Key Support
๐
Decode
โก
Generate
โ
Verify
๐
JWE Encrypt/Decrypt
๐ฅ
Enter JWT Token
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL25nLmNjIiwic3ViIjoidXNlci1uZyIsIm5hbWUiOiJubyBnb29kIiwiZW1haWwiOiJkZW1vQG5nLmNjIiwicm9sZSI6InVzZXIiLCJpYXQiOjE3NzIzNDczMTAsImV4cCI6MTc3Mjk1MjExMH0.pdoJFb133A7bipl69bPOC5AeIJrP5TBuoeWB3l6_3QM
๐
Decode
๐๏ธ
Clear
๐
Sample
๐ Header
Copy
๐ Payload
Copy
๐ Signature
Copy
๐ Token Info
โ๏ธ
Payload Configuration
๐ Issuer (iss)
๐ Subject (sub)
๐ค Name
๐ง Email
๐ญ Role
๐ค Regular user
๐ Admin
โ๏ธ Editor
โณ Expiry
1 hour
24 hours
7 days
30 days
๐
Signature Settings
๐ Algorithm
HS256
HS384
HS512
RS256
RS384
RS512
ES256 (P-256)
ES384 (P-384)
ES512 (P-521)
๐๏ธ Secret / Private Key (PEM for RSA/EC)
ng.cc-secret-key-2026
โ ๏ธ Key is only processed in browser memory โ never uploaded.
โก
Generate JWT
๐ซ
Generated Token
๐
Copy
๐พ
Download
โ
Verify Token
๐ซ JWT Token
๐ Algorithm
HS256
HS384
HS512
RS256
RS384
RS512
ES256
ES384
ES512
๐๏ธ Secret / Public Key (PEM for RSA/EC)
ng.cc-secret-key-2026
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Verify
๐
Verification Result
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Encrypt (JWE)
๐ Plaintext
{"message":"Hello secure world!"}
๐ Public Key (PEM)
๐
Generate Temporary RSA Key Pair
๐
Encrypt
๐
Decrypt (JWE)
๐ฆ JWE Token
๐ Private Key (PEM)
๐
Decrypt
๐
Result
Copy