happytails.ai

JSONL to JSON

Open JSONL to JSON 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": "jsonl-to-json",
  "category": "data-tools",
  "built": true,
  "requirements": "Line-numbered errors and streaming limits; distinguish arrays from multiple JSON values.",
  "implementation": {
    "fields": [],
    "experience": {
      "automatic": true,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "JSON Lines",
      "placeholder": "{\"name\":\"Ada\"}\n{\"name\":\"Sam\"}",
      "help": "Enter one complete JSON object per line. Results update as you type. Up to 1,000,000 characters.",
      "helpParts": [
        "Enter one complete JSON object per line.",
        "Results update as you type.",
        "Up to 1,000,000 characters."
      ],
      "action": null
    },
    "mode": "automatic",
    "interactive": false
  },
  "execution": "POST /api/v1/tools/jsonl-to-json/run",
  "api": {
    "id": "jsonl-to-json",
    "name": "Jsonl to JSON",
    "category": "data-tools",
    "description": "Convert JSON Lines into a JSON array.",
    "notes": "",
    "human_path": "/en/data-tools/jsonl-to-json/",
    "method": "POST",
    "endpoint": "/api/v1/tools/jsonl-to-json/run",
    "schema_url": "/api/v1/tools/jsonl-to-json",
    "input_schema": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "input": {
          "type": "string",
          "maxLength": 1000000,
          "default": "",
          "description": "Plain text input. File tools use files instead unless otherwise documented."
        },
        "options": {
          "type": "object",
          "additionalProperties": false,
          "properties": {}
        }
      }
    },
    "output_schema": {
      "type": "object",
      "required": [
        "tool",
        "result"
      ],
      "properties": {
        "tool": {
          "type": "string"
        },
        "result": {
          "type": "object",
          "required": [
            "text",
            "files"
          ],
          "properties": {
            "text": {
              "type": [
                "string",
                "null"
              ]
            },
            "data": {
              "description": "Parsed JSON when the textual result is JSON."
            },
            "name": {
              "type": "string"
            },
            "mime": {
              "type": "string"
            },
            "files": {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "name",
                  "mime",
                  "bytes",
                  "base64"
                ],
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "mime": {
                    "type": "string"
                  },
                  "bytes": {
                    "type": "integer"
                  },
                  "base64": {
                    "type": "string",
                    "contentEncoding": "base64"
                  }
                }
              }
            }
          }
        }
      }
    },
    "processing": "Server; same transformation code as browser tools",
    "limits": {
      "request_bytes": 8388608,
      "input_characters": 1000000,
      "files_bytes": 5242880,
      "max_files": 0,
      "timeout_seconds": 12
    }
  },
  "agent_processing": "Server; same transformation code as browser tools",
  "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"
  }
}

Page guide

Collect JSON Lines records into one JSON array.

How to use Jsonl to JSON
  1. Enter json lines in the input field.
  2. The result updates as you type. Adjust the available settings if needed.
  3. Review the result, then use Copy result or a download link when available.

Useful next steps

What to expect

Convert JSON Lines into a JSON array. Enter one valid JSON value per line. Blank lines are ignored. The whole input is processed in memory, up to the page’s input limit.