JSON to JSONL
Open JSON to JSONL 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": "json-to-jsonl",
"category": "data-tools",
"built": true,
"requirements": "Array-to-lines with one valid JSON value per line; clarify NDJSON alias.",
"implementation": {
"fields": [],
"experience": {
"automatic": true,
"single": false,
"inputMaxLength": 1000000,
"inputMode": "text",
"label": "JSON",
"placeholder": "{\"name\":\"Ada\",\"count\":2}",
"help": "Use double-quoted property names and valid JSON values. Results update as you type. Up to 1,000,000 characters.",
"helpParts": [
"Use double-quoted property names and valid JSON values.",
"Results update as you type.",
"Up to 1,000,000 characters."
],
"action": null
},
"mode": "automatic",
"interactive": false
},
"execution": "POST /api/v1/tools/json-to-jsonl/run",
"api": {
"id": "json-to-jsonl",
"name": "JSON to jsonl",
"category": "data-tools",
"description": "Convert JSON to JSON Lines.",
"notes": "",
"human_path": "/en/data-tools/json-to-jsonl/",
"method": "POST",
"endpoint": "/api/v1/tools/json-to-jsonl/run",
"schema_url": "/api/v1/tools/json-to-jsonl",
"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
Put each JSON record on its own line.
How to use JSON to jsonl
- Enter json in the input field.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
Useful next steps
What to expect
Convert JSON to JSON Lines. Paste the source content and review the available settings. Inspect nested values, numbers, empty cells, and column names before reusing the result.