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JWT Encoder/Decoder

ExtensionTools9 users
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Overview

Tool untuk encode dan decode JWT secara lokal di browser

JWT Tool - Advanced Encoder/Decoder Extension Overview: A powerful developer tool for inspecting, validating, and manipulating JSON Web Tokens directly in your browser. This extension provides complete JWT handling capabilities with robust security features. Key Features: Instant Decoding: Break down JWT tokens into header, payload, and signature components Smart Validation: Automatic checks for expiration, validity periods, and issuance dates Realtime Encoding: Generate new tokens with multiple algorithm support (HS256/384/512, RS256/384/512, ES256/384/512,none) Signature Verification: Validate token signatures against provided keys Secure Handling: All processing occurs locally - no token data leaves your browser Developer-Friendly: Clean interface with syntax-highlighted JSON views Technical Specifications: Supports all standard JWT algorithms (HMAC, RSA, ECDSA) Clipboard integration for easy token pasting/copying Comprehensive token validation including: Expiration (exp) Not Before (nbf) Issued At (iat) Manifest v3 compliant Zero external dependencies (except jsrsasign library bundled locally) Security Notice: This tool is designed for development purposes only. We strongly recommend: Never using production secrets Always working in secure environments Verifying tokens contain no sensitive data before processing Ideal For: API developers Security researchers Quality assurance testers Authentication system debuggers

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Details

  • Version
    1.0
  • Updated
    April 30, 2025
  • Size
    5.88MiB
  • Languages
    English
  • Developer
    Email
    bambangsutrisna07@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

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