CSR generator

Open CSR generator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "csr-generator",
  "category": "developer-tools",
  "built": true,
  "requirements": "Up to 100 DNS names and 20 IP addresses in subjectAltName, counting the common name when it is also put there; subject fields within RFC 5280 limits; an optional private key passphrase of 8 to 1024 characters. Key generation, signing and encryption run locally in a background worker in your browser. Download request.csr, the private key PEM and a JSON report without the key.",
  "implementation": {
    "fields": [
      {
        "key": "commonName",
        "label": "Common name (CN)",
        "value": "shop.example.com",
        "type": "text"
      },
      {
        "key": "dnsNames",
        "label": "More DNS names (comma or line separated)",
        "value": "www.shop.example.com",
        "type": "textarea",
        "help": "Wildcards like *.example.com are allowed. Up to 100 names, counting the common name when it is also put in subjectAltName. IP addresses go in the next box."
      },
      {
        "key": "ipAddresses",
        "label": "IP addresses (optional)",
        "value": "",
        "type": "text",
        "help": "IPv4 or IPv6, comma or space separated. Up to 20 addresses, counting the common name when it is an IP address that is also put in subjectAltName."
      },
      {
        "key": "addCommonNameToSan",
        "label": "Also put the common name in subjectAltName",
        "value": true,
        "type": "checkbox",
        "help": "A host name is added as a DNS name and an IP address as an IP address. Other text stays in the subject only."
      },
      {
        "key": "organization",
        "label": "Organization (O)",
        "value": "",
        "type": "text"
      },
      {
        "key": "organizationalUnit",
        "label": "Unit (OU)",
        "value": "",
        "type": "text"
      },
      {
        "key": "locality",
        "label": "City (L)",
        "value": "",
        "type": "text"
      },
      {
        "key": "state",
        "label": "State or province (ST)",
        "value": "",
        "type": "text"
      },
      {
        "key": "country",
        "label": "Country code (C)",
        "value": "",
        "type": "text"
      },
      {
        "key": "email",
        "label": "Email address",
        "value": "",
        "type": "text"
      },
      {
        "key": "keyType",
        "label": "Key type",
        "value": "EC P-256",
        "type": "select",
        "values": [
          "EC P-256",
          "EC P-384",
          "RSA 2048",
          "RSA 3072",
          "RSA 4096",
          "Ed25519"
        ]
      },
      {
        "key": "passphrase",
        "label": "Encrypt the private key with this passphrase (optional)",
        "value": "",
        "type": "password",
        "help": "At least 8 characters. Leave empty for an unencrypted key."
      }
    ],
    "registrationFamily": "crypto-formats-key-material",
    "input": false,
    "note": "Keys are generated and the request is signed in your browser; nothing is uploaded. Keep the private key file safe.",
    "experience": {
      "automatic": false,
      "single": true,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Common name",
      "placeholder": "shop.example.com",
      "help": "The main host name, for example shop.example.com. Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "The main host name, for example shop.example.com.",
        "Up to 1,000,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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