CSV Validator
Open CSV Validator 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": "csv-validator",
"category": "data-tools",
"built": true,
"requirements": "Report malformed quoting, inconsistent row widths and encoding; configurable dialect.",
"implementation": {
"fields": [
{
"key": "delimiter",
"label": "CSV separator",
"value": ",",
"type": "select",
"values": [
",",
";",
"\t"
]
}
],
"experience": {
"automatic": true,
"single": false,
"inputMaxLength": 1000000,
"inputMode": "text",
"label": "CSV",
"placeholder": "name,score\nAda,98\nSam,92",
"help": "Include a header row. Quote cells that contain commas or new lines. Results update as you type. Up to 1,000,000 characters.",
"helpParts": [
"Include a header row. Quote cells that contain commas or new lines.",
"Results update as you type.",
"Up to 1,000,000 characters."
],
"action": null
},
"mode": "automatic",
"interactive": false
},
"execution": "POST /api/v1/tools/csv-validator/run",
"api": {
"id": "csv-validator",
"name": "CSV validator",
"category": "data-tools",
"description": "Check CSV headers, quoting and row lengths.",
"notes": "",
"human_path": "/en/data-tools/csv-validator/",
"method": "POST",
"endpoint": "/api/v1/tools/csv-validator/run",
"schema_url": "/api/v1/tools/csv-validator",
"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": {
"delimiter": {
"type": "string",
"description": "CSV separator",
"default": ",",
"enum": [
",",
";",
"\t"
]
}
}
}
}
},
"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
Check CSV headers, quoting and row lengths before using the file.
How to use CSV validator
- Enter csv 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
Check CSV headers, quoting and row lengths. Choose the delimiter used in your text. The result reports the row count and column names for valid input. Duplicate or empty headers and inconsistent row lengths are rejected.