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CSV Splitter
Separate a CSV into multiple results based on row counts or chosen groupings, then download each generated file.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
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Why use this tool?
Split a large CSV into several files by row count or column value directly in the browser.
Smart processing
Clean, structure, and transform your data with rules tailored to the format being processed.
Supported formats
CSV, XLSX, and other tabular formats depending on each tool’s capabilities.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Fonctionnement
How does this tool work?
The tool parses the CSV once, preserves headers when required, and distributes rows according to the selected mode. Size-based splitting creates regular batches, while column-based splitting groups every row that shares the same field value.
Use cases
Create import batches
Divide a large file into smaller files accepted by a limited platform.
Separate teams or regions
Generate a dedicated file for every value in a business column.
Simplify manual review
Reduce file sizes so they are easier to inspect, share, or process.
Guide
How to use this tool
- 1
Add the data
Paste the CSV or provide the information required by the tool.
- 2
Configure processing
Choose the columns, rules, or options that match your objective.
- 3
Review the result
Check the report, then copy or download the generated data.
Tips and best practices
- Keep a copy of the source file before applying an important transformation.
- Check the delimiter and header-row setting before running the operation.
- All processing stays in your browser and no CSV file is uploaded.
Frequently asked questions
Are my CSV data uploaded?
No. Parsing, comparisons, and transformations are executed locally in your browser.
Are quoted fields supported?
Yes. The CSV engine supports delimiters inside quoted fields and multiline quoted content.
Can I download the result?
Yes. When a new CSV is produced, it can be copied or downloaded directly from the page.
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