Free Online Tools for
Developers, Designers & Creators
A complete suite of utilities to convert, format, and generate resources instantly. Secure, fast, and no downloads required.
Image Tools
Image Format Converter
Effortlessly convert images between JPG, PNG, WebP, GIF, and BMP formats instantly. Supports batch conversion with high-quality output.
OpenImage Compressor
Reduce image file size by up to 80% without compromising quality. Support for PNG, JPG, and WebP compression for faster web loading.
OpenImage Resizer
Resize images to exact pixel dimensions or use presets for Instagram, YouTube, and other social media platforms. Maintain aspect ratio perfectly.
OpenImage Color Extractor
Analyze images to extract dominant colors and build beautiful color palettes. Export hex codes for your design projects.
OpenDeveloper Tools
Excel to JSON
Convert Excel spreadsheets (.xlsx, .csv) into formatted JSON arrays for use in web applications and APIs.
OpenExcel ⇄ XML Converter
Convert Excel files to XML and XML back to Excel instantly. No upload, no server, 100% browser-based.
OpenJSON Formatter
Beautify, validate, and minify JSON data. Highlight syntax errors and format messy JSON into a readable tree structure.
OpenJSON to Dart
Instantly generate strongly-typed Dart classes from JSON objects. Essential for Flutter developers using API responses.
OpenColor & Design Tools
Color Picker
Identify and pick exact colors from images or generate color codes (HEX, RGB, HSL, CMYK) with a precision eyedropper.
OpenGradient Generator
Design beautiful linear and radial CSS gradients. Export code for Web, Flutter, and Tailwind CSS projects.
OpenContrast Checker
Check color contrast ratios against WCAG guidelines to ensure your design is accessible to everyone.
OpenText & File Tools
Word Counter
Real-time count of words, characters, sentences, and paragraphs. Analyze reading time and keyword density.
OpenCase Converter
Convert text case instantly: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case.
OpenLorem Ipsum Generator
Generate custom Lorem Ipsum placeholder text for layouts, with customizable paragraph length and formatting.
OpenFile Size Calculator
Convert between Bytes, KB, MB, GB, and TB. Useful for developers calculating storage and transfer rates.
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