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Utilnivo

Developer workflow

Turn a spreadsheet into an API payload

CRM and analytics exports often arrive as CSV while APIs expect JSON arrays. This workflow lets you inspect the table, convert rows to objects, pretty-print the result, and validate before you POST.

Preview CSV, convert to JSON, format, and validate before posting to an API.

  • 4 steps
  • About 8 minutes
  • Data stays on this device
  • Updated 2026-07-24
Copy & customize

Workflow

Steps to complete

Work through each step in order. Progress is saved in this browser. Utilnivo does not save uploaded files permanently between tools.

Progress: 0 of 4 steps complete (0%)

  1. Preview the CSV

    CSV Viewer and Formatter

    Inspect columns, delimiters, and sample rows before converting.

    • On your device
    • No signup
    Open CSV Viewer and Formatter

  2. Convert to JSON

    CSV to JSON Converter

    Transform rows into a JSON array of objects.

    • On your device
    • No signup
    Open CSV to JSON Converter

  3. Format the payload

    JSON Formatter

    Pretty-print or minify the JSON for review or transport.

    • On your device
    • No signup
    Open JSON Formatter

  4. Validate

    JSON Validator

    Confirm the converted document is valid JSON before calling the API.

    • On your device
    • No signup
    Open JSON Validator

Track progress

Your progress

0 of 4 complete (0%). Your progress is saved in this browser.

Printable step list with checkboxes—generated on your device.

Results

Overall output

What you entered and what each step produced appear here. Values used in the next step are passed when supported. Data stays in this browser only.

Run each step and submit the calculator form. Key results will appear here as a connected summary.

Progress: 0 of 4 steps marked complete (0%).

When to use this workflow

  • You received a CSV export and need a JSON body for a bulk import API.
  • Column names need a quick visual check before conversion.
  • You want to catch malformed JSON after a manual edit.

Tips

Tips for better results

  • Normalize header names in the spreadsheet first when APIs expect camelCase keys.
  • For very large files, convert a sample slice first to verify shape.
  • Follow with JSON Compare if you are migrating from a previous import format.

FAQ

Frequently asked questions

Are my spreadsheet rows uploaded?

Conversion runs in your browser. Utilnivo does not store CSV or JSON contents.

What about Excel .xlsx files?

Export or save as CSV first, then run this workflow. For PDF tables, use PDF to Excel separately.

Can I go the other direction?

Yes. Use JSON to CSV when you need a spreadsheet-friendly export from an API response.

Keep going

Related workflows

Validate JSON before deploy

Developer

Validate syntax, pretty-print, generate a schema draft, and diff against the previous payload.

4 steps

  1. Validate syntax
  2. Format for review
  3. Draft a schema
  4. Diff versions

Debug a failing API

Developer

Reproduce the request, format the JSON response, inspect JWTs, and compare payloads.

5 steps

  1. Send the request
  2. Format the response
  3. Inspect auth tokens
  4. Diff against expected
  5. Export as cURL