About
☰
All Tools
Categories
Blog About

CSV Formatter & Validator – Normalize & Convert Spreadsheet Data

Detect delimiters, validate rows, and convert CSV files into clean JSON or table outputs for analytics, APIs, and database imports.

🟢 Runs locally · no uploads

lightbulbPopular Use Cases

download
Data Export

Format CSV exports from databases and APIs

contacts
Contact Lists

Format contact information and address books

analytics
Sales Reports

Format sales and analytics data for reporting

inventory
Product Catalogs

Format product listings with specifications

CSV Input
Formatted CSV
output

Formatted CSV will appear here

code_blocksExample CSV Files

Simple CSV
Name,Age,City
John Doe,30,New York
Jane Smith,25,Los Angeles
Bob Johnson,35,Chicago
With Numbers
Product,Price,Quantity,Total
Laptop,999.99,5,4999.95
Mouse,29.99,10,299.90
Keyboard,79.99,8,639.92
Semicolon Delimiter
Name;Email;Phone
Alice Brown;alice@example.com;555-0101
Charlie Davis;charlie@example.com;555-0102

keyboardKeyboard Shortcuts

keyboardShow shortcutsexpand_more
Ctrl+EnterFormat CSV
Ctrl+LClear All

Related tools

Show more

JSON Formatter & Validator

Stop squinting at minified JSON! Format and validate JSON instantly with automatic error detection, syntax highlighting, and pretty printing. Catches missing quotes, trailing commas, and invalid syntax. Works with JSON and JSONC. Perfect for debugging API responses and config files. Free, works offline, unlimited usage.

XML Formatter & Validator

When logs or SOAP responses show up as one long line, this XML formatter makes them readable fast. Pretty‑print, validate, minify, or convert to JSON with namespace‑aware parsing. Sort attributes, strip comments or empty nodes, and get precise error diagnostics — quick XML parsing in the browser, no uploads.

Word Counter & Character Counter - Text Statistics Calculator

Professional word counter and character counter tool that provides instant text statistics including word count, character count, sentence count, paragraph count, readability scores, and detailed text analysis for any document or content.

CSV Table Viewer - View CSV Files Online as Interactive Tables

Free online CSV table viewer that displays CSV files as interactive tables with search, sort, and filter capabilities. Analyze CSV data with detailed statistics, handle large datasets, and export results.

YAML Formatter & Validator

Format, validate, and convert YAML data with syntax checking, JSON conversion, and beautification options.
Show more

CSS Beautifier & Minifier

Stop reading minified CSS! Format, beautify, and minify CSS code instantly with proper indentation, validation, and optimization. Supports CSS3, media queries, and nested rules with comprehensive formatting options. Free, works offline, unlimited formatting.

HTML Prettier Online - Beautifier & Formatter

Stop struggling with messy HTML! Format HTML code with prettier-style beautification online. Free HTML formatter with intelligent indentation, attribute sorting, validation, and minification — all in your browser. Supports modern HTML5, templates, and components. Free, works offline, unlimited formatting.

JavaScript Beautifier & Minifier

Stop reading minified JavaScript! Format, beautify, and minify JavaScript code instantly with proper indentation, syntax validation, and optimization. Supports ES6+, JSX, and modern JavaScript features with comprehensive formatting options. Free, works offline, unlimited formatting.

SQL Formatter & Beautifier

Stop struggling with unreadable SQL queries! Format and beautify SQL instantly with proper indentation, keyword case conversion, and syntax validation. Supports MySQL, PostgreSQL, Oracle, SQL Server with comprehensive formatting options. Perfect for database development and code reviews. Free, works offline, handles complex queries.

GraphQL Formatter

Format, validate, and minify GraphQL queries, mutations, subscriptions, and schema definitions. Supports syntax validation, auto-formatting with customizable options, and error detection for GraphQL operations.
› About this tool · FAQ

Format, validate, and convert CSV data with support for different delimiters, data type detection, sorting, filtering, and conversion to JSON or table format.

What delimiters are supported?

The tool supports comma, semicolon, tab, pipe, and custom delimiters. It can auto-detect the most likely delimiter from your data.

How does data type detection work?

The tool analyzes column values to detect integers, numbers, dates, booleans, emails, URLs, and text. This helps with validation and proper data handling.

Can I sort and filter CSV data?

Yes, you can sort by any column in ascending or descending order, and filter rows by column values using substring matching.

What validation features are available?

Validation includes checking column consistency, detecting empty rows, data type validation, and identifying malformed records with detailed error reporting.

How are quoted fields handled?

The tool properly handles quoted fields with embedded delimiters, newlines, and escaped quotes according to RFC 4180 CSV standards.