CCSV Local Tools
Private by default

Clean CSV files without uploading them

Drop a CSV, clean whitespace, deduplicate entire rows or selected key columns, review an audit summary, and download the result. Your file stays on your device.

No uploadNo accountFree to use
1

Choose your CSV

Local processing
Drop a CSV hereor choose a file · up to 50 MB Download a safe sample

Not sure? Start with UTF-8 and change this if the preview is garbled.

2

Configure the result

Choose a CSV to begin.
CSV workflow directory

Choose the next action, not another generic page

Clean and prepare

Audit and validate

Import workflows

Reference and test assets

Workflow guide

How it works

From source file to checked output

  1. 1

    Choose a CSV file and its source encoding.

  2. 2

    Select whitespace, empty-row, and duplicate-key rules.

  3. 3

    Review the audit, preview transformed rows, and download UTF-8 CSV.

Worked example

Trim a supplier export before re-import

Input

sku,title
 A-100 , Blue Shirt 
,

Expected result

sku,title
A-100,Blue Shirt

Boundary: The cleaner changes whitespace and rows only according to the selected checkboxes. It does not infer data types, repair business rules, or know the destination schema.

Continue the workflowRepair encoding before cleanupValidate the cleaned outputCheck identifier collisions
More local utilities

Need a browser tool that is not CSV-specific?

Tiny Task Tools includes focused utilities for text cleanup, JSON, regex, time zones, cron expressions, colors, passwords, aspect ratios, and percentages. They also run locally without an account.

Choose the focused site

Stay here for catalog and CSV workflows. Use Tiny Task Tools for smaller text, code, time, and everyday calculation tasks.

Built for operations

Useful before it becomes a workflow

These tools target repetitive catalog and operations tasks. Today each action is free and local. Reusable mappings, batch execution, automation, and APIs will only be built when repeated demand is proven.

Important boundary

Always validate output against the destination system’s current specification. This site is independent and is not certified by a marketplace.

Questions

Before you process a file

Does this upload my CSV?

No. Parsing and transformation run in your browser. The file contents are not sent to our server.

Which delimiters are supported?

Comma, semicolon, tab, and pipe-delimited files are supported. Automatic delimiter detection is used by default.

Can I use this for sensitive business data?

Local processing reduces exposure, but you should still follow your organization’s data-handling policy and verify the output before use.