Web Development
Web Development Tools
Essential tools for web developers. All processing happens locally.
100% Private
Instant
RegEx Tester
Test and debug regular expressions with match highlighting.
Match HighlightingGroupsReplaceCheatsheet
Cron Parser
Parse cron expressions and see next execution times.
Next RunsHuman-ReadableBuilderQuartz
Color Picker
Pick and convert colors between HEX, RGB, HSL formats.
HEXRGBHSLContrast
QR Code Generator
Generate QR codes for text, URLs, WiFi, and more.
Custom ColorsLogoPNG/SVGvCard
QR Code Reader
Scan QR codes from camera or uploaded images.
CameraUploadCopyHistory
SVG Optimizer
Optimize and minify SVG files for web use.
MinifyCleanPreviewCompare
Image Base64
Convert images to Base64 and vice versa.
EncodeDecodeData URIPreview
HTML Preview
Live preview HTML, CSS, and JavaScript code.
Live PreviewResponsiveConsoleCDN