CSV Splitter

Split a large CSV into smaller files by row count or column value and download them as a ZIP.

Runs in your browser Free
    Or paste your data
    Split by

    Processed locally in your browser. Your files are never uploaded.

    Break big files into manageable parts

    Many import tools and email services limit file size or row count. Use the CSV Splitter to divide a CSV with hundreds of thousands of rows to fit those limits.

    Two ways to split

    • By row count: e.g. a new file every 10,000 rows
    • By column value: a separate file per city, customer, category or dealer

    Handy output

    The header row can be repeated in every part, so each file can be used on its own. All parts are downloaded as one ZIP with meaningful names (data-part01.csv or data-London.csv). Processing happens in your browser.

    How to use CSV Splitter

    1. Upload the CSV to split.
    2. Choose to split by row count or column value.
    3. Decide whether to repeat the header row.
    4. Download the parts as a ZIP.

    Why use this tool?

    Import data without hitting system limits and distribute reports by region or category.

    FAQ

    How are the parts named?

    With a number when splitting by rows (data-part01.csv…) and with the column value when splitting by column (data-London.csv).

    Does every part have a header?

    Yes, with header repetition on, every file starts with the header row.

    Can I merge the parts again?

    Yes, use the CSV Merger.

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