Add rounded corners or make your images circular with this free online tool. Perfect for profile pictures, thumbnails, and social media posts.

Calculate percentages easily for discounts, taxes, growth rates, and more. Solve common percentage problems with this free online tool.

Calculate area, perimeter, volume and other properties of geometric shapes like triangles, circles, rectangles and more.

A simple, client-side click counter with adjustable step sizes and optional sound effects. Ideal for quick counts, surveys, or presentations requiring real-time interaction.

Quickly calculate tips for any bill amount. Split the total including tip among multiple people with ease.

Convert between Unix timestamps and human-readable dates. Features real-time updates and time difference calculations.

Analyze and count characters, words, lines and bytes in any text. Useful for writers, editors and developers.

Generate customizable SVG placeholder images with specified dimensions and text. Perfect for web development and design mockups.