Hex file viewer

Open Hex file viewer 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": "hex-file-viewer",
  "category": "developer-tools",
  "built": true,
  "requirements": "One file up to 256 MiB. View 16–4,096 bytes at a time. Search for 1–64 hexadecimal bytes from the chosen offset. Non-printable bytes appear as dots in the ASCII column; this is not a text-decoding or editing tool.",
  "implementation": {
    "fields": [
      {
        "key": "offset",
        "label": "Starting byte offset",
        "value": 0,
        "type": "number",
        "min": 0,
        "max": 268435456,
        "step": 1
      },
      {
        "key": "window",
        "label": "Bytes to display",
        "value": 1024,
        "type": "number",
        "min": 16,
        "max": 4096,
        "step": 1
      },
      {
        "key": "pattern",
        "label": "Find hex bytes (optional)",
        "value": "",
        "type": "text",
        "help": "Enter 1–64 bytes, for example 48 65 6c 6c 6f. Search starts at the selected offset; the result window moves to the first match."
      }
    ],
    "files": true,
    "input": false,
    "multiple": false,
    "maxFileBytes": 268435456,
    "presentation": "metrics",
    "deferImagePreview": true,
    "note": "Files are inspected on your device and are never modified. Maximum 256 MiB per file.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "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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