JSON Convert Tools

CSV Cleaner

Trim values, remove blank rows, and optionally remove duplicate records.

Local processing

Drop a file here, or paste your data. Maximum 10 MB. Text files must use UTF-8.

Ready when you are.

Your data is processed in your browser and is not stored on our servers.

Formula protection prefixes risky cells with an apostrophe. Turn it off only when you need exact raw values and trust the receiving application.

What is CSV Cleaner?

Trim values, remove blank rows, and optionally remove duplicate records.

Choose whether to trim cells, drop empty rows and remove duplicate rows. The first row is retained as the header. The cleaned result is a new CSV file.

Why use CSV Cleaner?

Use this tool to inspect a small dataset or prepare data for another application without installing software. Processing takes place in this browser. No account is required.

How to use CSV Cleaner

  1. Paste your input, upload a file, or load Sample Data.
  2. Choose any applicable options and select Clean.
  3. Review the output, then copy or download it.

Example

Input

name,city
 Ada , Pune 
 Ada , Pune 
,

Output

name,city
Ada,Pune

Common problems

Duplicate removal compares whole rows after the selected trimming step. Turn trimming off when surrounding whitespace has meaning. Keep a copy of the original before replacing a dataset.

Frequently asked questions

Is my conversion data uploaded?

No. Conversion inputs and outputs remain in this browser. Contact form messages are handled separately by WordPress.

Can I process large files?

The default limit is 10 MB. Browser memory and data complexity can impose lower practical limits.

Do I need an account?

No account is needed to use this tool.

Related tools

JSON to CSV Converter

Flatten JSON records into a CSV table, with nested values preserved as JSON.

Open tool

CSV to JSON Converter

Convert CSV headers and rows into an array of JSON objects.

Open tool

CSV to Excel Converter

Create a real .xlsx workbook from CSV rows without uploading data.

Open tool

Excel to CSV Converter

Choose a worksheet from an .xlsx or .xls workbook and export CSV.

Open tool

CSV Viewer

Inspect CSV rows in a searchable, paginated table.

Open tool