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

Convert special characters to HTML entities and decode HTML entities back to characters. Free online HTML encoding tool.

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

View the night sky with stars, constellations, and celestial objects from your location. Interactive star map for stargazing and astronomy.

Test password strength with entropy calculation, dictionary attacks, and NIST guidelines. Get real-time security feedback.