UUUP Tools

Data Tools

CSV to JSON Table Converter

Convert CSV tables to JSON arrays in your browser. Supports comma, tab, semicolon, or pipe separators and optional header rows. Processing stays local—useful for exports, API samples, and light imports.

Quick switch→JSON to CSV
CSVJSONConverter
Quick switch:JSON to CSVCSV Column ExtractorJSON Formatter

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Copy this tool URL or open the system share sheet on a supported device.

Use cases

  • Turn spreadsheet exports into API sample JSON
  • Convert cleaned name lists into object arrays
  • Prepare table data for frontend use without uploads

How to use

  1. Paste CSV text
  2. Confirm delimiter and header settings
  3. Copy the JSON result

Example input and output

Input

name,role
uuup,tool
astro,framework

Output

[{"name":"uuup","role":"tool"},{"name":"astro","role":"framework"}]

FAQ

Is the first row used as field names?

By default yes when “First row is header” is checked. Uncheck it to use column indexes instead.

Is comma the only delimiter?

No. You can also choose tab, semicolon, or pipe.

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