Dev Utilities Tools

UUID / ULID Generator

Generate UUIDs (v1, v4, v7) and ULIDs in bulk.

Regex Tester

Test regular expressions live with capture groups and flavor reference.

Cron Parser

Parse cron expressions, show plain-English meaning, and preview next runs.

Timestamp Converter

Convert between Unix timestamps and ISO 8601 dates with timezone support.

Color Converter

Convert colors between hex, RGB, HSL, OKLCH and check WCAG contrast.

QR Code Generator

Generate QR codes from text, URLs, wifi credentials, or vCards.

QR Code Decoder

Decode QR codes from images — all in-browser, no upload.

IP Address Lookup

Look up IP country, ISP, and ASN — the only tool that makes a network request.