CSV ↔ JSON / Excel Converter

Convert CSV or Excel files to clean JSON with schema previews, delimiter detection, and shareable deep links. Trim headers, normalize phone numbers, and drag-drop files without leaving your browser.

Drag & drop CSV/XLSX files here or choose a fileto preview instantly.

Raw CSV

Delimiter

Detected: ","

Column filter

Shareable via ?columns=name,phone

Trim & slug headers

Clean phone numbers

JSON preview

[
  {
    "name": "Ada Lovelace",
    "phone": "+1 (415) 555-0100",
    "notes": "VIP"
  },
  {
    "name": "Grace Hopper",
    "phone": "+44 20 7946 0958",
    "notes": "Admiral"
  }
]

Schema preview

name: STRING • e.g. Ada Lovelace
phone: STRING • e.g. +1 (415) 555-0100
notes: STRING • e.g. VIP

Data preview

name	phone	notes
Ada Lovelace	+1 (415) 555-0100	VIP
Grace Hopper	+44 20 7946 0958	Admiral

Batch cleaning perks

Normalize headers, strip weird phone formats, and copy/paste results straight into CRM imports—everything runs locally for privacy. Share URLs with preselected columns to keep teams aligned.

Workflow pairings

Combine with Text → Extractor to grab leads, then convert to JSON in one tab.
Use phone cleanup before uploading to dialer platforms.
Export JSON for API mocks or download Excel to share with non-technical teams.