📊 CSV Tool
CSV Splitter — Split Large CSV into Chunks
Split large CSV files into smaller chunks. Every chunk keeps the original header row. Free, fast, works in browser.
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Drop your CSV file here or click to upload
Supports .csv files of any size • All processing done in browser
How CSV Splitter Works
Upload any large CSV file and split it into smaller files with your chosen number of rows per chunk.
By default, every chunk file includes the original header row so each file is independently usable with Excel, Google Sheets, or any database.
Features:
- Header row included in every chunk (optional)
- Custom rows per chunk — you choose
- Quick presets: 100, 500, 1000, 5000, 10000, 50000
- Handles quoted fields and commas inside cells correctly
- All processing in browser — your data stays private
- Files named automatically: filename_part1_of_5.csv