utilsconsole

Advertisement

Ad Slot — header-ad

CSV to JSON & JSON to CSV Converter

Convert bidirectional data between CSV and JSON formats with auto delimiter detection, table previews, and client-side downloads.

🔒 Runs in your browser · No upload · No signup

Related Tools

🔄

JSON to CSV, Excel & Markdown Converter

New

Convert JSON data into CSV, Excel (.xlsx, .xls), and Markdown tables instantly with nested object flattening, delimiter controls, and client-side downloads.
🔍

JSON Validator & Formatter

New

Validate, format, prettify, minify, and debug JSON with exact line error detection.
🔤

Base64 Encoder & Decoder

New

Encode and decode text or files to and from Base64 format with full UTF-8 support.

Frequently Asked Questions

Are my CSV or JSON spreadsheets sent to an external server? ↓

No. All parsing, conversion, and file generation happen 100% inside your web browser using client-side JavaScript. Your confidential records, customer lists, and financial datasets never leave your device.

Which delimiters are supported in CSV mode? ↓

The converter automatically detects or lets you specify Comma (,), Semicolon (;), Tab (TSV), and Pipe (|) delimiters with full support for escaped quotes and multiline fields.

Can this tool parse numbers and boolean true/false values? ↓

Yes. You can toggle automatic type casting so numeric values ("100") and booleans ("true", "false") are properly converted to native JSON numbers and booleans rather than strings.

How large of a file can I convert? ↓

Because conversion is performed directly in your browser memory, datasets with tens of thousands of rows convert in just a few milliseconds.