HashLab is a free, lightweight hash calculator designed for Chrome users, enabling instant calculations of MD5, SHA-1, SHA-256, and SHA-512 hashes. With a focus on privacy, it operates entirely within the browser, ensuring that no data is collected or transmitted. Users can choose between text and file modes, allowing for easy input through typing, pasting, or dragging and dropping files. The tool supports multiple output formats including hexadecimal, Base64, and grouped formats for readability.

Designed with developers in mind, HashLab features a clean, distraction-free interface and provides one-click copying for hashes. It also includes full keyboard navigation and screen reader support, making it accessible for all users. Utilizing the browser's native Web Crypto API for secure hash computations, HashLab guarantees a fast and efficient experience without requiring any browser permissions or background processes.