Tools

Fast, elegant developer utilities — Free & Pro

JSON → Java Class

Paste JSON, get clean Java classes. Pro adds JPA, Lombok getters/setters, int/long inference & ZIP export.
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XML → Java Class

Convert XML to Java classes. Pro adds JAXB-like field hints, Lombok/JPA toggles & ZIP export.
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JWT Decoder & Verifier

Decode JWT in-browser. Pro verifies signatures with a public key (RS256) — no server.
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Base64 Encoder / Decoder

Encode/decode text instantly. Pro adds file/image support + batch & ZIP export.
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What’s included in Pro?

Pro unlocks advanced features while keeping everything fast and private (all local in your browser).

JSON → Java Class

  • Free: Generate simple POJOs from JSON
  • Pro: JPA annotations (@Entity/@Column)
  • Pro: Lombok @Getter/@Setter or generated methods
  • Pro: Auto int/long for IDs, ISO dates → OffsetDateTime
  • Pro: One-click ZIP download (all classes)

JWT Decoder

  • Free: Decode header & payload
  • Pro: Verify signatures (RS256 / ES256)
  • Pro: Batch decode multiple tokens
  • Pro: Human times for exp/iat/nbf
  • Pro: Export claims to CSV

Base64 Tools

  • Free: Text encode/decode
  • Pro: Files support (images, PDFs, ZIPs)
  • Pro: Base64URL mode (JWT-safe)
  • Pro: Multiple charsets (UTF-8, ISO-8859-1, HEX)
  • Pro: Download result