Wrangle CSVs in your browser. Free preview: 5 sample operations left.
Merge several CSV files (even with mismatched column orders), remove duplicate rows by a single column or by full match, filter to the rows you need with contains / equals / not-empty modes, and convert between CSV, TSV, and JSON — all in your browser. No account, no email gate, no upload. Pure JavaScript handles the work locally. For million-row files, regex filtering, splitting a CSV by row count, and splitting by column value (one file per region, customer, or category), the full Windows app is $5.
📄 Drag CSV / TSV / JSON files here, or pick files
Free preview: try up to 5 sample operations. 10 MB per file.
Combine all uploaded CSV/TSV files into one. Headers from the first file become the master; other files are realigned column-by-column.
Choose a column to dedupe by (e.g. email, id). Leave on "full row" to remove exact duplicates.
Auto-detects the input format (CSV/TSV/JSON). The desktop app also handles split-by-row-count, split-by-column-value, regex filter, and smart delimiter detection on more delimiters.
Free browser preview: try up to 5 sample operations, right here.
Full Windows app: unlimited rows, files, folders, larger batches, and 100% offline use.
The $5 desktop app also includes: