Free business calculator
Mailing List Splitter
Filter a CSV by any column and download the matching segment as a clean table.
- Instant results
- Private in your browser
- PDF report included
Use the result well
A clear answer, with the assumptions visible
These recommendations turn the result into an operational next step without hiding the inputs behind a score.
- 1
Check the row count before importing or sending.
- 2
Keep consent and unsubscribe status in every segment.
- 3
Save the original list before replacing it with a filtered file.
How this tool works
- Parse the header row and records with Papa Parse.
- Compare one chosen column using the selected rule.
- Return only matching rows in the downloadable table.
Build it in Bookify
Start with Bookify Bring the plan into your daily work
Keep bookings, clients, payments, and records together in Bookify.