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Validate Your CSV Files Instantly
Upload any CSV file to check its structure, encoding, delimiters, data types, and quality. Get instant results with a shareable report.
Drop your CSV file here
or click to browse files
Supports .csv, .tsv, and .txt files up to 10MB
Validating your CSV...
What We Check
File Structure
Rows, columns, and format validation
Character Encoding
UTF-8, Latin-1, and BOM detection
Column Consistency
Ensures all rows have the same columns
Data Type Analysis
Detects integers, dates, emails, URLs
Duplicate Detection
Finds duplicate and empty rows
Quality Score
Overall quality rating from 0 to 100
Your Privacy Matters
Files are processed in memory and deleted immediately. We never store your data.
Validation Results
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Quality Score
Overall quality assessment of your CSV file
Total Rows
Columns
Encoding
Delimiter
Issues Found
No Issues Found
Your CSV file passed all validation checks. Great job!
File Details
Structure Details
Column Headers
| # | Header Name | Data Type |
|---|---|---|
Fix & Download
Select the fixes to apply and download the corrected CSV file.
Change Delimiter
Locale Number Format
Converts decimal separators and thousand grouping between EU and US number formats.
Select at least one fix or conversion above.
CSV Tools
Convert your CSV file format — change delimiters, locale, or encoding.
Change Delimiter
Locale Number Format
Converts decimal separators and thousand grouping between EU and US number formats.
Select at least one fix or conversion above.
How It Works
Three simple steps to validate your CSV file
1. Upload Your File
Drag and drop or click to select your CSV, TSV, or TXT file. Files up to 10MB are supported.
2. Automatic Validation
Our engine checks encoding, delimiters, structure, data types, duplicates, and more in seconds.
3. Get Your Report
View detailed results with a quality score, issues list, and column analysis. Share with a link.
Frequently Asked Questions
Common questions about CSV validation
CSV validation checks your file for common issues like inconsistent column counts, encoding problems, duplicate rows, and data type mismatches. It helps ensure your data is clean and ready for import or analysis.
No. Your CSV file is processed entirely in memory and deleted immediately after validation. We never store your file contents. Only the validation results (metadata) are saved temporarily for sharing.
We support CSV (comma-separated), TSV (tab-separated), and TXT files with common delimiters including commas, semicolons, tabs, and pipes. The delimiter is auto-detected.
We detect UTF-8 (with and without BOM), Latin-1 (ISO-8859-1), Windows-1252, and other common encodings. Files are automatically converted to UTF-8 for analysis.
Yes! We offer a REST API and MCP (Model Context Protocol) server for programmatic access. Check our API documentation for details on authentication and endpoints.
The quality score (0-100) is based on multiple factors including column consistency, header quality, duplicate percentage, empty row count, encoding, and data type uniformity. Each issue reduces the score based on severity.