Developer Tools

A collection of free online tools I've built to help with development and productivity.

Markdown Editor
Online markdown editor with live preview, syntax highlighting, and auto-save.
Regex Tester
Test JavaScript regular expressions with real-time highlighting and flag options.
Cron Expression Builder
Visually build and generate cron expressions with human-readable descriptions.
Barcode Generator
Generate downloadable SVG/PNG barcodes (CODE128, EAN, UPC) and QR codes.
Color Picker
Explore colors in HEX, RGB, HSL formats. Find combinations and popular palettes.
Domain Finder
AI-powered domain name suggestions with real-time availability checking.