Free tool / CSV Cleaner and Mapper

CSV Cleaner and Mapper

Clean inconsistent CSV or TSV data, map columns to a target schema and export safer files without uploading customer data.

Current status: Live
Repair data before integration

Available now

Clean inconsistent CSV or TSV data, map columns to a target schema and export safer files without uploading customer data.

Open the free tool
Bring
CSV or TSV files and an optional target-column schema.
You get
Cleaned CSV, visible change summary and reusable mapping JSON.
Know the limit
Deterministic cleanup cannot decide the business meaning of ambiguous columns.
Local by default

The five file and AI engineering tools run in your browser without an account, provider call or analytics. The workflow map can optionally hand a result to the project form only when you choose.

Use it for

Preparing exports for a CRM, spreadsheet, database import or repeatable hand-off between systems.

How it works

The tool parses the table locally, removes exact duplicates and empty rows, neutralises spreadsheet formulas and applies a visible column mapping.

Example workflow

Map Customer ID, Full Name and Email Address to a target import schema, inspect ten preview rows and download the mapping contract.

Common questions
Does my input leave the browser?
The five file and AI engineering tools run in your browser without an account, provider call or analytics. The workflow map can optionally hand a result to the project form only when you choose.
Does the result prove the system is ready?
Deterministic cleanup cannot decide the business meaning of ambiguous columns.