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Decode JWTs and generate hashes, UUIDs, and random strings locally. JWT tools decode only; signatures are not verified. Browse all 11 Security tools with no upload and no account.

  • JWT Decoder: Decode JWT online and inspect bearer tokens locally in your browser. View header, payload, and OAuth 2.0 claims instantly. Free, no upload, no account.
  • JWT Header Viewer: Decode JWT header online in your browser. View alg, typ, and other header fields locally. Free, no upload, no account required.
  • JWT Payload Viewer: Decode JWT payload online free. View claims like sub, exp, iat in your browser. No upload, no account, no signature verification.
  • SHA-256 Hash Generator: Free online SHA-256 hash generator and calculator. Generate checksums instantly in your browser with no upload or account required.
  • SHA-512 Hash Generator: SHA512 online generator: free browser-based hash tool. Generate 128-character hex checksums locally with Web Crypto. No upload, no account required.
  • SHA-1 Hash Generator: Free SHA-1 encoder online. Generate SHA-1 hashes in your browser, convert to base64. No upload, no account, no server processing.
  • MD5 Hash Generator: Free random MD5 hash generator that runs locally in your browser. Hash random strings, tokens, and identifiers with no upload or account required. MD5 is not collision-resistant; use SHA-256 for new designs.
  • Hash Generator: Generate MD5, SHA1, SHA256, and SHA512 hashes online free in your browser. Encode text to SHA1 hex or compare all four digests instantly. No upload, no account.
  • UUID Generator: Generate random UUID v4 online in your browser. Bulk generate 1 to 10,000 UUIDs instantly with no upload, no account, no server processing.
  • UUID Validator: Free UUID and GUID validator: check valid UUIDs in RFC 4122 format, version/variant nibbles, bulk validate up to 10,000 IDs locally. No upload, no account.
  • Random String Generator: Generate random strings online in your browser with crypto.getRandomValues. Choose hex, alphanumeric, or URL-safe alphabets. Free, no upload, no account required.

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