Free Data Converter Tools
Convert data between any format instantly. JSON, CSV, XML, Excel, and more. Professional-grade converters that work offline with no file size limits.
Most Popular Data Converters
JSON to CSV Converter
Convert JSON arrays and objects to CSV format with customizable delimiters, headers, and data handling options.
CSV to JSON Converter
Convert CSV (Comma Separated Values) files to JSON format with advanced parsing options, data type detection, and flexible output structures.
JSON to XML Converter
Convert JSON data to well-formed XML with customizable formatting, attribute handling, namespace support, and structure validation.
XML to JSON Converter
Convert XML data to JSON format with customizable parsing options, attribute handling, namespace support, and intelligent structure conversion.
Excel to JSON Converter
Free online Excel to JSON converter that safely converts Excel spreadsheets (.xlsx, .xls) to JSON format in your browser. No files uploaded to servers, works offline, supports multiple sheets and custom formatting options.
JSON to Excel Converter
Free online JSON to Excel converter that safely converts JSON data to Excel spreadsheets (.xlsx) or CSV format in your browser. No files uploaded to servers, works offline, supports nested object flattening and custom formatting options.
JSON to TypeScript Interface
Convert JSON data to TypeScript interfaces and type definitions. Automatically infer types, handle nested objects, and generate clean TypeScript code.
Data Conversion Categories
JSON Conversions
Convert JSON to/from CSV, XML, Excel, TypeScript, and more
Data Format Conversions
Transform between CSV, XML, Excel, and other data formats
File Format Conversions
Convert images, documents, and files between formats
Encoding Conversions
Base64, URL encoding, and text encoding conversions
Popular Data Conversion Workflows
API Response Processing
Convert JSON API responses to CSV or Excel for analysis and reporting.
Data Analysis Pipeline
Import CSV data, convert to JSON for processing, export results to Excel.
Code Generation
Generate TypeScript interfaces from JSON data for type-safe development.
Why Choose Our Data Converters?
Lightning Fast
Instant conversion with real-time preview. No waiting, no processing delays.
100% Private
All conversions happen locally. Your data never leaves your browser.
No Limits
Convert files of any size. No registration, no file limits, completely free.
Accurate Results
Professional-grade conversion algorithms ensure data integrity and accuracy.
All Data Converters
JSON Formatter & Validator
Format, validate, and beautify JSON/JSONC with key sorting, inline arrays, duplicate key detection, and rich error detailsβall locally.
XML Formatter & Validator
Format, validate, minify, and convert XML with namespace-aware parsing, attribute sorting, JSON export, and instant error diagnostics β purpose-built for SOAP, RSS, and config workflows.
YAML Formatter & Validator
Format, validate, and convert YAML data with syntax checking, JSON conversion, and beautification options.
HTML Prettier Online
Format HTML code with prettier-style beautification online. Free HTML formatter with intelligent indentation, attribute sorting, validation, and minification β all in your browser.
JavaScript Beautifier & Minifier
Format, beautify, and minify JavaScript code with proper indentation, syntax validation, and optimization. Supports ES6+, JSX, and modern JavaScript features with comprehensive formatting options.
SQL Formatter & Beautifier
Format, beautify, and minify SQL queries with proper indentation, keyword formatting, and syntax validation. Supports multiple SQL dialects with comprehensive formatting options.
CSV Formatter & Validator
Format, validate, and convert CSV data with support for different delimiters, data type detection, sorting, filtering, and conversion to JSON or table format.
Markdown β HTML Converter
Professional bidirectional Markdown β HTML converter with comprehensive support for tables, task lists, nested lists, syntax highlighting, and complex HTML structures. True round-trip conversion preserving document structure and formatting.
Data Format Transformer
Transform data between multiple formats including JSON, YAML, CSV, XML, TOML, INI, and Properties with structure preservation and advanced options.
CSS to Tailwind Converter
Convert traditional CSS styles to Tailwind CSS utility classes with support for responsive variants, interactive states, and multiple output formats.
Image Format Converter
Convert images between different formats (PNG, JPEG, WebP, BMP, GIF) with compression, resizing, and optimization options. Process images entirely in your browser.
WebP Image Converter
Convert images to and from WebP format with advanced compression settings, quality optimization, and detailed conversion metrics. Supports JPEG, PNG, GIF, BMP input with lossless and lossy modes.
Image to Base64 Converter
Convert images to Base64 encoding for embedding directly in HTML, CSS, or applications. Supports multiple formats with compression and resizing options.
Data URI Converter
Convert text, images, and other content to/from Data URIs for inline embedding in HTML, CSS, and JavaScript.
Unit Converter
Professional unit converter and measurement calculator supporting length (meters, feet, inches, miles, km), weight/mass (kg, pounds, ounces, grams), temperature (Celsius, Fahrenheit, Kelvin), volume (liters, gallons, cups), area, time, and digital storage conversions. Convert between metric, imperial, and scientific measurement systems with precision formulas.
Number Base Converter
Convert numbers between different bases (binary, octal, decimal, hexadecimal, and more). Supports bases 2-36 with validation, digit grouping, and batch processing.
Color Format Converter
Convert and compare colors across HEX, RGB, HSL, HSV, CMYK, LAB, and named palettes with live preview, alpha handling, and palette-ready exports.
Currency Converter
Convert between world currencies with live exchange rates from the European Central Bank. Features visual currency cards, historical charts, and comparison tools for 31+ major currencies.
PDF Text Extractor
Free online PDF text extractor that safely extracts text content from PDF documents in your browser. No files uploaded to servers, works offline, supports metadata extraction, and handles large PDF files up to 50MB.
HTML Entity Decoder
Decode HTML entities into readable text characters, supporting named entities, numeric codes, and hexadecimal values with comprehensive validation.
Emoji Converter
Convert between emoji formats, analyze emoji usage, and search emoji database
Base64 to Image Converter
Decode base64 encoded strings back to images. Extract images from data URLs, HTML, or CSS. Preview decoded images and download in original format.
Camel Case Converter
Convert text between 13 formats β including a dedicated camelCase converter β supporting PascalCase, snake_case, kebab-case, Title Case, constants, and more for developers and writers.
Markdown Table Generator
Convert CSV, JSON, TSV, or manual data into beautifully formatted markdown tables. Support for sorting, alignment, and customization options.
SVG Editor
Edit, optimize, validate, and manipulate SVG files with comprehensive tools
API Response Formatter
Format, validate, and analyze API responses including JSON, XML, and raw HTTP responses with headers, status codes, and performance metrics.
Timestamp Converter
Convert between different timestamp formats including Unix timestamps, ISO dates, and human-readable formats. Supports timezone conversion, relative time display, and batch processing.
Timestamp Formatter
Convert and format timestamps between different formats including Unix, ISO 8601, and RFC 2822 with timezone support and relative time calculation.
Time to Decimal Hours Converter
Convert between time formats (8:30) and decimal hours (8.5) with payroll calculations, timesheet processing, and billing features. Perfect for HR, payroll, legal billing, and time tracking.
Timezone Converter
Convert times between different time zones, find optimal meeting times across multiple locations, and compare current times worldwide with DST awareness.
Binary/Hex Viewer
Advanced binary and hexadecimal file viewer with format detection, structure analysis, and customizable display options.
Data Conversion FAQ
What file formats can I convert?
We support JSON, CSV, XML, Excel (XLSX), TSV, YAML, Base64, images, and many more formats with dozens of conversion combinations.
Is there a file size limit?
No, there are no file size limits. Our converters can handle small snippets to large datasets efficiently in your browser.
How accurate are the conversions?
Our converters use industry-standard algorithms and libraries to ensure 100% accurate data conversion with proper type handling.
Can I convert data in bulk?
Yes, many of our tools support batch conversion and can process multiple files or large datasets at once.
Do conversions preserve data types?
Yes, our converters intelligently preserve data types (strings, numbers, booleans) and handle special characters properly.
Are conversion tools free forever?
Absolutely! All conversion tools are completely free with no hidden costs, usage limits, or premium features.