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CSV Merge & Split Tool

Combine multiple CSV files into one export or split a large file into smaller chunks so uploads and imports stay predictable.

Merge Two CSV Files

Combines File A and File B into one output. If headers are enabled, only the first header is kept.

A
File A
First file in the merged output
B
File B
Appended after File A
Split One CSV File

Splits a large file into multiple output parts by row count.

📄
File to split
One output file per chunk

Tool overview

Combine multiple CSV files into one export or split a large file into smaller chunks so uploads and imports stay predictable.

Who this tool is for

  • Teams working around dialer and CRM file-size limits
  • Ops teams preparing weekly imports and exports
  • Analysts standardizing files before reporting workflows

How it works

  1. Upload one or more CSV files
  2. Choose merge or split mode and set parameters
  3. Run the tool to generate outputs
  4. Download the merged file or split parts

Use cases

  • Split a dialer file into consistent chunk sizes
  • Merge vendor exports into one standardized file
  • Prepare smaller imports for systems with upload limits

Example operations

Mode Input Output
Merge file_1.csv + file_2.csv merged.csv
Split big.csv (300k rows) part_1.csv, part_2.csv, ...

Security & privacy

Uploads and outputs are stored privately and served via protected download links. Outputs are retained for 30 days by default.

FAQ

Will the tool preserve headers?
Yes. Outputs are generated with consistent headers so imports remain predictable.
What is the best split size?
Choose a size that matches your dialer or CRM import limits and your operational routing needs.
Are uploads private?
Yes. Uploads and outputs are stored privately and served via protected download links.