100% Free - No Signup Required

Free Data Tools

30 free tools to convert, clean, and transform your data. Browser-based, private, instant.

Data Format Converters

CSV to JSON

Convert CSV files to JSON format instantly in your browser

JSON to CSV

Convert JSON data to CSV format for spreadsheets and analysis

JSON Formatter

Format, validate, and beautify JSON data with syntax highlighting

XML to JSON

Convert XML documents to JSON format for modern applications

Excel to CSV

Convert Excel spreadsheets (.xlsx, .xls) to CSV format

CSV to Excel

Convert CSV files to Excel format (.xlsx) with formatting

TSV to CSV

Convert tab-separated values (TSV) to comma-separated (CSV)

CSV to Markdown

Convert CSV data to Markdown table format for documentation

CSV to HTML

Convert CSV data to HTML table code for websites

JSON to YAML

Convert JSON data to YAML format for configuration files

YAML to JSON

Convert YAML configuration files to JSON format

CSV to SQL

Generate SQL INSERT statements from CSV data

Markdown to CSV

Extract CSV data from Markdown tables

Data Cleaning Tools

Duplicate Remover

Find and remove duplicate rows from your CSV data

Column Selector

Select, remove, and reorder columns in your CSV data

CSV Merge

Combine multiple CSV files into one unified dataset

CSV Split

Split large CSV files into smaller chunks

Date Converter

Standardize date formats across your CSV data — free, browser-based, no upload required

Number Converter

Standardize number formats (currency, decimals, thousands)

Case Converter

Convert text case in CSV columns (uppercase, lowercase, title case)

Whitespace Cleaner

Remove extra spaces, trim whitespace, and clean text in CSV

Find & Replace

Find and replace values across your entire CSV dataset

Empty Row Cleaner

Remove empty rows and handle blank cells in CSV data

Data Analysis Tools

Type Detector

Analyze CSV columns and detect data types automatically

CSV Validator

Validate CSV structure and find formatting issues

Row Counter

Count rows, columns, and get quick CSV statistics

Encoding Tools

Base64 Tool

Encode text to Base64 or decode Base64 to text instantly

URL Encoder

Encode or decode URLs and query parameters

HTML Entities

Encode special characters to HTML entities or decode them back

Time Tools

Timestamp Tool

Convert Unix timestamps to human-readable dates and vice versa

FAQ

Are these tools really free?

Yes. No signup, no credit card, no hidden fees.

Is my data secure?

All processing happens in your browser. Your data is never uploaded to any server.

What file formats are supported?

CSV, JSON, XML, YAML, TSV, Excel, Markdown, HTML, SQL, and plain text.

Can I use these for commercial purposes?

Yes, no restrictions.

Need to visualize your data?

Create beautiful charts with CleanChart — no coding required.

Create a Chart