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CSV to JSON Converter

Paste CSV or upload a file — convert to JSON instantly

Convert CSV data to JSON format instantly. Paste your data or upload a .csv, .tsv, or .txt file — the first row is treated as headers automatically, with comma, semicolon, and tab delimiters supported (auto-selected for .tsv files).

📁

Upload CSV file

Drag & drop or click to browse — .csv, .tsv, .txt

Delimiter:

First row is header

OR PASTE CSV

CSV Input

JSON Output

💡 First row is used as JSON keys by default. Toggle delimiter if your file uses semicolons or tabs. TSV files are auto-detected on upload.

Frequently Asked Questions

Comma, semicolon, and tab are all supported.

A JSON array of objects, where each CSV row becomes one object.

Yes — drag and drop or browse for a .csv, .tsv, or .txt file. The tab delimiter is auto-selected for .tsv files.

Missing values are filled in as empty strings rather than causing an error, so uneven rows still convert cleanly.

Learn More

tutorial

CSV to JSON: Why Your Numbers Turn Into Strings (and Other Conversion Gotchas)

8 min read