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Discover tools from different categories to expand your toolkit beyond Developer's World.

Check if a year is a leap year or find the next leap year with our free calculator. Learn about leap year rules and why we need them.

Convert images between formats including JPG, PNG, WebP, and GIF. Free online image format converter with no registration needed.

Generate Lorem Ipsum placeholder text with customizable length and format. Free online tool for web designers and developers.

Create professional email signatures with your contact information and styling. Free email signature generator.