Come si usa: Generatore di JWT
Generatore di JWT è uno strumento online gratuito di Strumenti di sicurezza che sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded istantaneamente nel browser. Incolla i dati, regola le opzioni e ottieni il risultato in tempo reale: senza installazione, senza registrazione, senza upload.
Descrizione
Sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded.
- Strumenti di sicurezza
- Essendo tutto client-side, Generatore di JWT è sicuro anche per dati sensibili come chiavi API e token.
Come si usa
Usare Generatore di JWT richiede tre passaggi:
- Incolla i dati nel campo di input (o carica l’esempio).
- Regola le opzioni in base al formato desiderato.
- Copia, scarica o consulta l’output — aggiornato in tempo reale.
Esegui
Esempi
Builds a signed HS256 token whose exp (2030-01-01 UTC) is shown with its human UTC/local time. Secrets never leave the browser and the unsigned "none" algorithm is refused by design — for inspecting foreign tokens use the Decoder / Verifier pages (the loopback pair of this generator).
Output（由工具此刻实时生成）
Signed with HS256 — the token below is the compact serialization:
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiIyNjE3MyIsInN1YiI6ImRlbW8iLCJleHAiOjE4OTM0NTYwMDB9.-ZCXzFd37b5ZNaDyjyUHfPXEyKzs9ta4TTj5AyO5xpE
Header: {"alg":"HS256","typ":"JWT"}
Payload: {"iss":"26173","sub":"demo","exp":1893456000}
Claim times (your browser clock):
Expires at: 1893456000 = 2030-01-01T00:00:00.000Z UTC | local: Tue Jan 01 2030 00:00:00 GMT+0000 (Coordinated Universal Time) -> still valid
Paste the token into the Verify mode on this same page (or the JWT Verifier page) to check it; to inspect claims without verifying use the JWT Decoder page. Everything ran in your browser — the secret and key never left this machine.
此输出由工具真实运行产生，并非人工编写。
Casi d’uso
Casi d’uso comuni di Generatore di JWT:
- Sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded.
Parametri
Questo strumento non ha opzioni: lavora solo sull’input.
FAQ
Cos’è JWT Generator?
JWT Generator serve a sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded. Funziona interamente nel browser, i dati restano privati.
È gratuito?
Sì, illimitato, senza registrazione né installazione.
I miei dati vengono caricati?
No, tutto è elaborato localmente nel browser.
Da sapere
- 全部计算在浏览器端完成，因此超大输入受限于标签页内存，而非服务器上传限制。