Split CSV Online — Free CSV Splitter Tool
Split CSV online in seconds with our free CSV splitter. Use this simple tool to split CSV files by row count, by file size, or into two files — fast, secure, and no signup required.
Split Large CSV Files
Upload your CSV, set rows per file, and download them as a ZIP.
Drag & Drop your CSV file
or browse files
How it works
Choose your file (CSV or XLSX), drag & drop or paste tabular data. If your file has headers, toggle “Keep header row” so each split keeps the column titles.
Choose split method
Pick “Rows per file”, “Number of files”, or “Split into two”. Optionally set file size limits or specific row ranges.
Download results
Click Split → wait a few seconds → download a ZIP of the split CSVs or individual files. For large files, we provide progress feedback and instant downloads.
Split options explained
You can split CSV files into two (useful for sharing), into multiple chunks (for import limits), or by size (to meet upload constraints). Provide examples (e.g., “split into 2 files of 10,000 rows each”) so users understand intent. Tools that process files locally (in the browser) give extra privacy — call this out if your tool does that.
Why choose our CSV splitter
Fast, free, and reliable — ideal for large datasets, preserving header rows, and giving you flexible split controls. Mention WHERE data is processed (locally in browser vs uploaded) and your privacy / retention policy clearly on the page to build trust. Competitor features to match: large-file support, header preservation, and no sign-up required.
What does “Split CSV Online” mean?
It means dividing a CSV file into smaller parts directly in your browser. With our free CSV splitter, you can split large CSV files by rows, file size, or into two parts instantly.
Can I split a CSV file into two files only?
Yes. Simply choose “Number of files = 2” in the tool, and your CSV will be divided into exactly two equal parts.
Do I need to sign up or create an account?
No. Our tool is completely free to use, with no registration or hidden steps. Just upload, split, and download.
Will my header row be preserved in each file?
Yes. If your CSV has headers, enable the “Keep header row” option to ensure each split file keeps the same column titles.
How large of a CSV file can I split?
Our tool supports large files with thousands or even millions of rows. The process runs in your browser, so speed depends on your device, but no file size restrictions are enforced.
Is my data safe when splitting CSV files?
Yes. All processing happens directly in your browser—your files are never uploaded to a server, keeping your data private and secure.
Can I split by rows, file size, or number of files?
Yes. You can split by setting the number of rows per file, splitting into a specific number of files, or limiting by file size.
How do I download the split files?Is this tool free to use?Is this tool free to use?
Once the split process is finished, you’ll see download links. You can download each CSV separately or as a ZIP file containing all split files.
What does “Split CSV Online” mean?
It means dividing a CSV file into smaller parts directly in your browser. With our free CSV splitter, you can split large CSV files by rows, file size, or into two parts instantly.
Is this tool free to use?
Absolutely. This CSV splitter is 100% free, with no feature restrictions or watermarks.
Can I use this tool on mobile or tablet?
Yes. Our Split CSV Online tool works on desktops, tablets, and mobile devices. No installation is required—just a modern browser.