CSV Tools — Convert, Transpose, Dedupe
Convert CSV to JSON, JSON to CSV, transpose rows/columns, or remove duplicates. All processing happens in your browser — your data never leaves your device.
[
{
"name": "Alice",
"email": "alice@example.com",
"signup_date": "2024-01-15"
},
{
"name": "Bob",
"email": "bob@example.com",
"signup_date": "2024-02-20"
},
{
"name": "Carol",
"email": "carol@example.com",
"signup_date": "2024-03-10"
}
]Working with spreadsheets?
FormulaPad generates Excel & Google Sheets formulas from plain English. Free tier, no signup.
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Is my data uploaded anywhere?
No. All parsing happens in your browser — nothing leaves your device. Safe for sensitive data.
How large a CSV can this handle?
Up to a few megabytes comfortably. For 100MB+ files use a streaming tool — this is optimized for quick, interactive operations.
Does it handle quoted fields and embedded commas?
Yes. The parser follows RFC 4180 — handles quoted fields, embedded commas, embedded quotes (as ""), and embedded newlines.
What delimiter options are supported?
Comma, semicolon, tab, and pipe (|). TSV files use tab. European locales often use semicolons.
Can I use a formula to do this instead?
For recurring work, yes — FormulaPad can generate QUERY, SPLIT, or Power Query equivalents. For one-off conversions, this tool is faster.