Paste comma-separated data or choose a CSV file. Turn rows into a structured JSON array, preview the result, then copy or download it.
Free, no signup, no uploads. All parsing happens in your browser. Quoted commas, double quotes, line breaks and UTF-8 files are supported.
Maximum 2 MB CSV text, 5,000 data rows, 80 columns and 64 KB per cell. Column values remain text to avoid silently changing leading zeros or account-like codes.
The first CSV row becomes the property names. All subsequent rows become JSON objects.
name,city followed by Asha,Jaipur becomes [{"name":"Asha","city":"Jaipur"}]. Every value is a string, including numbers and dates; parse to the correct types later if needed.
Quotes and line breaks: Standard double-quote escaping is supported, including embedded commas and multiline fields. LF and CRLF line endings work.
Predictable schema: Headers must be present and unique; rows with extra or missing columns raise a clear error rather than silently shifting cells.
No external API: The local file reader and converter do not send CSV content to ToolForge's server. The page loads third-party advertising scripts, which may make their own requests.
Limitations: Expects comma delimiters and a single header row; not TSV, semicolon-separated data, automatic type inference or arbitrarily huge files. An unclosed quoted cell raises an error. Duplicate headers are rejected.