Convert Messy CSV with Quotes and Commas

Parse CSV that has commas, quotes, or line breaks inside fields.

Ei kirjautumista tarvitaTiedostot pysyvät yksityisinä

Drop a CSV file (or paste below)

CSV, TSV, TXT ei tiedostokokorajoitusta

Selaa tiedostoja

CSV

JSON

—

First row is a headerConvert numbers & booleans

Delimiter

💡 A proper RFC 4180 parser — handles quoted fields, commas and line breaks inside quotes, and escaped quotes. With "first row is a header" on, you get an array of objects; off, an array of arrays. Everything runs in your browser.

CSV tips

📑

The RFC 4180 parser correctly handles commas and newlines inside quoted fields — where naive split-by-comma breaks.

Escaped double-quotes ("") inside a field are decoded properly.

🔍

If a column looks off, check the delimiter setting — auto-detect handles most files.

🔒

Runs entirely in your browser.

Miten se toimii

Valitse tiedosto

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Käsittele

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lataa

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Miksi käyttää meidän?

✓Täysin ilmainen — ei piilokustannuksia, koskaan

✓Ei tiliä, sähköpostia tai kirjautumista tarvita

✓Tiedostot eivät koskaan poistu laitteeltasi

✓Ei tiedostokokorajoituksia lainkaan

✓Ei vesileimoja missään tulosteessa

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🔌

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↹

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Parse tab-separated data copied from a spreadsheet

📥

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Convert a CSV into JSON to seed a database or load

💻

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See CSV rows as structured JSON objects while deve

Usein kysytyt kysymykset

Back to CSV to JSON