Clean your CSV data in seconds

Upload a dataset, detect missing values and duplicates, and export a cleaner file—fast.

Secure processing
CSV up to 10MB
Export ready

Dataset Overview

13,230
Rows
9
Columns
187
Missing Values
62
Duplicates
Column Completeness
name98%
email94%
age100%

How it works

Three simple steps to cleaner data

Upload

Upload your CSV file up to 10MB. We support standard CSV formats with headers.

Profile

Automatically detect missing values, duplicates, and column types with detailed analytics.

Export

Download your cleaned CSV file instantly, ready to use in your workflow.

Features

Everything you need to clean your data

Dataset profiling

View rows, columns, and inferred data types at a glance

Missing value detection

Identify and quantify missing data across all columns

Duplicate detection

Find and remove exact duplicate rows automatically

Quick charts

Generate histograms and bar charts for data visualization

Clean CSV export

Download your processed data as a clean CSV file

Summary statistics

Get basic stats like null percentages and unique counts

Your data stays yours

We take security seriously

Files processed securely to generate results

Your data is not shared

Files removed after processing

Start cleaning your data today

Join users who trust klnData for fast, secure data cleaning