A Love Letter to CSV

For developers and data analysts who adore CSV's simplicity but need JSON for APIs and web apps. Paste your CSV, get clean structured JSON instantly — no signup, no upload, no fuss.

Results update live as you type — no button needed. The Example button fills a sample input.

Why use CSV Love Letter?

Instant CSV to JSON conversion with proper type inference

Handles headers, quoted fields, and common delimiters

Runs entirely in your browser — your data never leaves your device

Copy-ready JSON output for APIs, configs, and web apps

A loving tribute to the humble CSV format

FAQ

Why a love letter to CSV?

CSV is the most universal data format ever created — simple, readable, and everywhere. We celebrate it by giving it a modern JSON twist.

Is my data sent to a server?

No. All conversion happens locally in your browser. Your CSV never leaves your device.

What CSV features are supported?

We handle standard comma-separated values with a header row, quoted fields, and common edge cases. The first row is treated as keys.

Can I convert large CSV files?

Yes, within browser memory limits. For very large files, consider a command-line tool, but for everyday data this works great.

Example input

Try it with this sample — paste it into the box above:

name,age,city
Alice,30,New York
Bob,25,London

How to use CSV Love Letter

  1. Enter or paste your data into the Paste your CSV data box above.
  2. The result appears instantly in the JSON output box — everything runs in your browser, nothing is uploaded.
  3. Use Copy or Download to keep the result, or Example to load a sample first.

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