General Utilities

Encode text to Base64 or decode Base64 to text instantly. Supports Unicode characters with real-time bidirectional conversion and one-click copy functionality.

Encode URLs and decode URL-encoded strings instantly. Choose between component encoding (for query parameters) or full URL encoding with real-time conversion.

Encode HTML characters for safe web content and decode HTML entities back to text. Supports basic and full entity encoding with XSS prevention.

Convert text to 30+ formats: Base64, URL encoding, HTML escape, Morse code, camelCase, snake_case, Unicode normalization, Binary, Hex, and more with real-time conversion.

A fast and powerful online unit converter for length, weight, temperature, data, and typography.

Convert bits, bytes, KB, MB, GB, KiB, and MiB instantly. Calculate file download times over various internet speeds and estimate storage capacity on different media.

A versatile and precise on-screen protractor, angle meter, and spirit level. Measure angles on images, designs, or use your phone's camera and sensors for real-world measurements.

Create professional bar charts with an intuitive data editor. Import/export CSV data, customize colors, and export high-quality charts.

An interactive physics simulation of Newton's Cradle. Adjust the number of balls, elasticity, and gravity to explore the laws of conservation of momentum and energy.