Generators
4 generator tools that help you create common developer artifacts. Generate UUID v4 and v7 identifiers, build and decode Cron expressions with next-run preview, convert Unix timestamps, and generate styled QR codes for text, URLs, WiFi, and more. Everything runs locally in your browser.
UUID Generator
Generate v1/v3/v4/v5/v7 UUIDs conforming to RFC 4122/9562. Supports bulk generation and multiple output formats. Free, 100% local — no tracking, no data sent.
Cron
Build and decode Cron expressions for Standard, Spring, and Quartz schedulers. See human-readable explanations and preview the next 5 execution times.
Unix Timestamp
Convert between Unix timestamps and readable dates with a live clock. Supports seconds and milliseconds, showing Local and UTC side-by-side. 100% in your browser.
QR Code Generator
Generate styled QR codes for text, URLs, WiFi, vCard, email, and SMS with custom colors, logos, and dot styles. Export as SVG or PNG — free, 100% in your browser.