FREE DATA WORKSPACE · LOCAL BY DESIGN
Better data, fewer steps.
Drop in a CSV or paste your data. Clean, combine, filter or convert it right here — your files stay on your device.
WORKSPACE / READY WHEN YOU ARE
Your data, your next move.
Choose a task and start working here. Each tool also has its own guide below.
01 / ROWKIND TOOLKIT
Remove duplicate CSV rows
Keep the first occurrence of each row or key value, then download a clean CSV.
INPUT
Choose files from your device
CSV or JSON · up to 8 MB per file · 50,000 rows
OPTIONS
Processed in your browser. Files are not sent to our server.
✦ Processed in your browser. Files are not sent to our server.Full guide
✳ Start with the workspace below. Switch tools without leaving this page.
04 / TOOL GUIDES
A smoother way through messy data.
01 / ROWKINDRemove duplicate CSV rowsKeep the first occurrence of each row or key value, then download a clean CSV.Full guide ↗02 / ROWKINDMerge CSV files by column nameCombine files even when their columns appear in a different order. New columns are added to the result.Full guide ↗03 / ROWKINDFilter CSV rows by a columnKeep only the rows you need using a simple condition on any column.Full guide ↗04 / ROWKINDConvert CSV and JSON onlineMove between tabular CSV and an array of JSON objects while keeping column names.Full guide ↗
MADE FOR REAL WORK
Private by default. Useful by design.
Files stay on your device. No sign-up, no upload, and no server bill for each CSV you process.
- 01The first row is treated as the column header.
- 02Comma, semicolon, tab and pipe delimiters are detected automatically.
- 03Large files depend on your device memory and browser.