Convert TSV to CSV in your browser

Replacing every tab with a comma works until a value contains a comma, a quote or a line break. A TSV file usually has no quoting at all, while a CSV needs "Rotterdam, NL" in quotes and "" for a literal quote. Get that wrong and the columns shift for every row after the first address field.

The export here is written by DuckDB's CSV writer: values are quoted only when they need it, quotes are doubled, and line breaks inside a value stay inside the value.

The delimiter is sniffed from the content, not the file name, so .tsv, .tab and .txt files work, and so do semicolon-separated exports from European Excel and pipe-separated dumps. Header row, quoting style and a type per column are detected the same way; files up to 50 MB are sniffed in full, bigger files are sampled.

Malformed lines are skipped with a note at the top of the table. If types can't be detected reliably, every column is read as text and the note says so, which is often what you want for a lossless conversion.

The table shows what the CSV will contain. If a column came out as a number but has leading zeros you care about, cast it: SELECT CAST(zip AS VARCHAR) AS zip, * EXCLUDE (zip) FROM data. Export then follows the query result.

Export writes the current view: filter with country:NL, hide columns, sort by clicking a header, and only those rows and columns land in the file. Plain filters have no row cap; SQL results stop at 1,000,000 rows.

UTF-8, comma separated, one header row, nulls as empty cells. Text that starts with =, +, - or @ gets a leading apostrophe so Excel or Google Sheets won't run it as a formula when the file is opened.

The same menu writes Parquet with zstd compression, a JSON array, JSONL and a Markdown table of the first 1,000 rows. The CO2 sample, 13.7 MB as CSV, is 4.3 MB as Parquet.

rows.page exports CSV, Parquet, JSON, JSONL and Markdown, not TSV. For CSV to TSV use DuckDB on your machine: duckdb -c "COPY (SELECT * FROM read_csv('data.csv')) TO 'data.tsv' (DELIMITER '\t', HEADER)". The same command handles files past the 1.5 GB browser limit.

To share the table rather than the file, press Share or run curl -T data.tsv https://rows.page. Anonymous links take files up to 100 MB and are deleted 7 days after creation; a free account keeps 10.