Tools & Utilities | jasurdev.uz

First Published: 2026-11-01
Last Updated: 2026-11-09

A collection of client-side utilities designed for speed, privacy, and zero latency. All operations are processed entirely inside your browser — no inputs, tokens, or personal calculations are ever transmitted to any server.

Available Tools & Calculators

Enter any website URL and jump straight to its Google PageSpeed Insights report: Core Web Vitals, performance score, and mobile or desktop analysis.

Check the contrast ratio of any two colors against WCAG 2.2 AA and AAA for normal text, large text and UI components.

Runs entirely in your browser. Tip: press / or Ctrl+K anywhere.