Client Side Tools

Calculate real car dimensions from diecast model scale, or find model size from real car measurements. Supports common scales like 1:18, 1:24, 1:43, 1:64.

Convert between different units of calories (cal, kcal, kJ, J) and sugar measurements (grams, teaspoons, tablespoons, ounces, cups).

Calculate the apparent temperature (feels like) based on actual temperature, humidity, and wind speed using heat index and wind chill formulas.

Calculate optimal brewing parameters for Da Hong Pao oolong tea including tea amount, water temperature, and steeping times for Gongfu and Western styles.

Convert between backslashes and forward slashes in file paths and strings. Useful for converting Windows paths to Unix/Linux format and vice versa.

Calculate check digits using ISO 7064 MOD 97-10 algorithm. Commonly used for IBAN and LEI validation.

Convert between CSS length units including pixels (px), centimeters (cm), millimeters (mm), inches (in), points (pt), and picas (pc).

Interactive preview and reference for all CSS cursor values with live demonstration

Convert legacy Internet Explorer CSS to modern standards. Automatically transforms IE-specific filters (opacity, gradients), vendor prefixes (-ms-), old flexbox/grid syntax, selector hacks, and proprietary properties into clean, modern CSS equivalents.

Build Framer Motion spring transition configs with interactive sliders, preview the feel, and copy a ready-to-use snippet.

Test and validate glob patterns against file paths in real-time

Validate URLs against robots.txt rules. Check if a URL is allowed or disallowed for specific user-agents, view crawl delays, and find sitemap references.

Create customizable panels for Twitch, Discord, or social media. Generate professional-looking images for PC specs, rules, about sections, and more with multiple design styles.

Experience realistic mechanical keyboard typing with authentic sounds and visual feedback

Test your keyboard's n-key rollover capability. Press multiple keys simultaneously to see how many keys your keyboard can register at once.

Test your QWERTY ANSI Windows keyboard. Press keys to see them light up, track key presses, and verify that all keys are working correctly.

Test your QWERTY ANSI 60% Windows keyboard. Compact 61-key layout without function keys, arrow keys, or numpad. Press keys to see them light up and verify all keys work correctly.

Test your QWERTY Russian Windows keyboard with Cyrillic characters. Press keys to see them light up, track key presses, and verify that all keys are working correctly. Based on the standard JCUKEN layout.

Test your QWERTY Estonian Windows keyboard with special Estonian characters (õ, ä, ö, ü). Press keys to see them light up, track key presses, and verify that all keys are working correctly. Based on the ISO layout.

Test your QWERTY Swedish Windows keyboard with special Swedish characters (å, ä, ö). Press keys to see them light up, track key presses, and verify that all keys are working correctly. Based on the ISO layout.

Test your QWERTY Finnish Windows keyboard with special Finnish characters (å, ä, ö). Press keys to see them light up, track key presses, and verify that all keys are working correctly. Based on the ISO layout.

Test your QWERTY Finnish/Swedish macOS keyboard with special Scandinavian characters (å, ä, ö) and Apple-specific keys. Press keys to see them light up, track key presses, and verify that all keys are working correctly. Features command, option, and control keys typical of Mac keyboards.

Test and improve your typing speed with real-time WPM tracking and accuracy metrics

Generate customizable test print pages for printer calibration and quality testing. Create pages with color bars, grayscale gradients, alignment marks, text samples, and grid patterns.