Encode and decode Base64, URL-safe Base64URL and percent-encoded URL components with full UTF-8 support.
Tools & Utilities | hexjasur.github.io/Jasurbek
A collection of client-side developer utilities designed for speed, privacy, and zero latency. All operations are processed entirely inside your browser — no inputs, tokens, or code snippets are ever transmitted to any server.
Available Developer Tools
Generate accessible, rem-based clamp() values for fluid font sizes and spacing, with a live preview and a table of computed sizes.
Check the contrast ratio of any two colors against WCAG 2.2 AA and AAA for normal text, large text and UI components.
Compress or beautify JSON payloads, CSS stylesheets, and JavaScript code with live payload size savings metrics.
Generate cryptographically secure version 4 UUIDs (standard, uppercase, no hyphens) and URL-safe NanoIDs using native WebCrypto.
Paste raw JSON data to instantly produce strongly-typed TypeScript interfaces with automatic nested type resolution.
Convert text between 1995 legacy Latin, the official reformed Latin standard (Ö, Ğ, Ç, Ş), and Uzbek Cyrillic script.