Solve linear, quadratic and other equations step by step. Get detailed solutions and explanations for each step.

Convert between Roman numerals (I, V, X, L, C, D, M) and Arabic numbers (1, 2, 3) instantly. Supports all standard Roman numeral values from 1 to 3999.

Convert text between different case formats like lowercase, uppercase, camel case, and more. Easily transform your text for programming or writing needs.

Convert any text to the NATO phonetic alphabet (Alpha, Bravo, Charlie) for clear verbal communication in aviation, military, or customer service.

Professional screen recording tool that captures everything on your screen in high definition. Record specific windows, full screen, or custom areas with audio from system and microphone.

Convert between numeric RMB amounts and their formal Chinese written equivalents. Essential for financial documents, invoices and checks.

Convert between binary, decimal and hexadecimal numbers instantly. Perfect for programmers and computer science students.

Create custom animated GIFs with frame-by-frame editing. Add effects, adjust speed, and preview instantly.