Bring the whole table
Paste CSV or TSV, or load a UTF-8 / UTF-16 text file up to 10 MB. The first row supplies column names.
Data & spreadsheets / Made for the task at hand
Smaller files.
Same good data.
Split a CSV or TSV into smaller CSV files by row count. Keep headers, quoted commas and multiline cells, then download all parts in one ZIP.
Your csv file splitter workspace
02 / SOURCE
03 / RESULT
Ready when you areZIP of CSV parts
A little less work starts here.
Add your source, or try the example, then choose “Split my CSV”.
Results are temporary. Download anything you want to keep.
Your original data is never changed.
◇ Local processing↧ Real, downloadable results⌁ No account required
A practical little workflow
From “I need to…” to done.
Set a practical file size
Choose how many data rows belong in each file. Headers repeat and quoted multiline cells stay together.
Take every part with you
Inspect the manifest, then download a ZIP containing all CSV parts. Your source is never changed.
Before you get started
Useful answers.
Clear boundaries.
Built for a focused job.
Review important results before use.
Are rows split in the middle?
No. The parser reads CSV records, so quoted commas and line breaks belong to their original cells. Every data row must have the same number of columns.
What are the limits?
Up to 20,000 data rows, 10 MB of text and 200 output files. This is for small browser-based jobs, not multi-gigabyte exports.
Why enable formula protection?
Spreadsheet-safe export adds an apostrophe to cells that could start a formula. This changes exported cell text; disable it only when you need exact values and trust the input.
What happens to my data?
Working text and local files are processed in this browser tab and are not sent to a server or an AI service. Reloading clears this workspace. Optional analytics and feedback have separate privacy controls; see Privacy below.