Fix the problem of large CSV files being too heavy to import for free. Automatically split giant CSV files into lightweight files of approximately 500KB, which is optimal for Blog Importer.

Splits large CSV files into smaller chunks of approximately 500KB.
The first row is kept as a header in all split files.

Drag and drop files

Or click to select a file

Original file: -

Number of files: -

Total data rows: -

Tool Features

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Optimized Splitting to ~500KB for Stable Import

CSV files with excessive data capacity are a major cause of errors due to upload timeouts or memory shortages. This tool automatically splits files into a size of approximately 500KB, where processing in Blog Importer is most stable, ensuring a reliable import environment without interruptions.
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Automatic Retention of Header Information (1st Row) in All Files

Unlike tools that simply split by a specified number of rows, this tool automatically duplicates and adds the "header (column names)" from the first row of the CSV data to all split files. This ensures that the data format and mapping remain intact regardless of which split file you import from.
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Browser-based & ZIP Batch Download

No installation of specialized software or tedious initial setup is required. Simply drag and drop the CSV file onto your browser, and the splitting process is completed instantly. Multiple split files can be downloaded together as a single ZIP file, significantly improving work efficiency.

No, the order does not matter. Since all split files retain the header information from the first row, data will be correctly recognized regardless of which file you load into Blog Importer, and it will be safely imported with the original data structure intact.
Yes, it is safe to use. This tool's file splitting process is executed entirely on your device (in the browser), so data is never sent to or stored on external servers. You can use it with peace of mind in a secure environment.