Free Online Developer Tools – Converters, Generators & Utilities

Data Converters

Convert data, documents, and structured files from one format to another without changing the underlying information. Whether you’re working with JSON, XML, CSV, YAML, timestamps, or schema definitions, these tools help streamline data exchange, simplify migrations, and improve compatibility between applications, APIs, databases, and development environments.

JSON to XML Converters XML to JSON Converters JSON to CSV Converters XML to CSV Converters CSV to JSON Converters CSV to XML Converters CSV to YAML Converters YAML to JSON Converters JSON to YAML Converters Epoch Timestamp Converter XSD Generator XSL Transformer

Formatters

Well-formatted code is easier to read, debug, and maintain. This collection automatically organizes indentation, spacing, line breaks, and document structure for popular data and markup formats, producing clean, consistent output that is suitable for editing, collaboration, and production workflows.

JSON Formatter XML Formatter HTML Formatter SQL Formatter YAML Formatter CSV Formatter

Validators

Ensure your files and expressions meet the required syntax before they are processed or deployed. These validation tools analyze structured data, markup, queries, and patterns to identify errors, highlight invalid elements, and help you resolve issues that could otherwise cause parsing failures or unexpected application behavior.

JSON Validator XML Validator HTML Validator XPath Tester Regular Expression Tester Java Regular Expression Tester

Escape / Unescape

Special characters often require escaping before they can be safely stored, transmitted, or interpreted by programming languages and markup processors. These utilities encode reserved characters into their escaped representations and restore them back to their original form whenever readable or executable content is required.

JSON Escape & Unescape XML Escape & Unescape CSV Escape & Unescape HTML Escape & Unescape SQL Escape & Unescape JavaScript Escape & Unescape Java .NET Escape & Unescape

Encoder / Decoder / Cryptography

Work with widely adopted encoding standards, cryptographic utilities, and data transformation algorithms from a single location. Encode plain text into formats such as Base64, UTF variants, or URL encoding, decode existing encoded content, generate hashes and HMAC values, or create and scan QR codes for efficient data sharing and verification.

UTF-8 Encoder & Decoder UTF-16 Encoder & Decoder UTF-32 Encoder & Decoder Base16 Encoder & Decoder Base32 Encoder & Decoder Base36 Encoder & Decoder Base58 Encoder & Decoder Base62 Encoder & Decoder Base64 Encoder & Decoder Base85 Encoder & Decoder Base91 Encoder & Decoder URL Encoder & Decoder QR Code Generator QR Code Scanner Message Digester HMAC Generator

Beautifier / Minifier

Prepare source code for development or production using tools designed to improve readability or reduce file size. Beautifiers reorganize code into a clean, structured layout for easier editing, while minifiers eliminate unnecessary characters to decrease bandwidth usage and improve website loading performance.

CSS Beautifier CSS Minifier JavaScript Beautifier JavaScript Minifier

Number Base Converters

Translate numbers and text between binary, decimal, hexadecimal, octal, and related numeral systems with complete accuracy. These converters are useful for software engineering, digital electronics, networking, embedded programming, cybersecurity, and educational purposes where different number representations are frequently required.

Text to Hex Converter Hex to Text Converter Text to Binary Converter Binary to Text Converter Text to Octal Converter Octal to Text Converter Text to Decimal Converter Decimal to Text Converter Binary to Decimal Converter Decimal to Binary Converter Binary to Hex Converter Hex to Binary Converter Binary to Octal Converter Octal to Binary Converter Decimal to Hex Converter Hex to Decimal Converter Decimal to Octal Converter Octal to Decimal Converter Hex to Octal Converter Octal to Hex Converter

Image Tools

Modify and optimize images directly in your browser with utilities for resizing, compressing, flipping, and converting between common file formats. Each tool is designed to preserve image quality while producing files that are better suited for websites, applications, documents, social media, and digital publishing.

Image Resizer Image Compressor Image Flipper JPG to PNG Converter JPG to WEBP Converter PNG to JPG Converter PNG to WEBP Converter WEBP to JPG Converter WEBP to PNG Converter GIF to JPG Converter GIF to PNG Converter GIF to WEBP Converter BMP to JPG Converter BMP to PNG Converter BMP to WEBP Converter

Text Tools

Edit, analyze, and transform text quickly using practical utilities for everyday writing and content management. Count words, replace text, reverse characters, convert letter casing, generate placeholder content, or extract readable text from webpages to simplify tasks that would otherwise require manual editing.

Word Counter Word Replacer Text Reverser Uppercase Text Converter Lowercase Text Converter Lorem Ipsum Generator Webpage to Text Converter

Design Tools

Build attractive and accessible interfaces with generators and utilities created for modern web design. Explore color combinations, extract colors from images, evaluate contrast ratios, generate gradients, create CSS effects, and convert between color formats to speed up front-end development and maintain visual consistency across projects.

Color Palette Generator Image Color Picker Color Contrast Checker CSS Gradient Generator Box Shadow Generator Border Radius Generator HEX to RGB Converter RGB to HEX Converter