Free tools for app makers
A small toolkit we built for ourselves and opened up. All free, all in your browser, no sign-up. When you're ready to design the whole app, Bender is one click away.
App Name Generator
Turn a keyword into dozens of brandable app name ideas.
Open toolFree toolColor Palette Generator
Generate harmonious UI palettes and copy the hex codes.
Open toolFree toolTailwind Shade Generator
Any hex → a full Tailwind 50–950 scale + config.
Open toolFree toolContrast Checker
Check text/background contrast against WCAG AA & AAA.
Open toolFree toolGradient Generator
Build linear & radial gradients, copy the CSS.
Open toolFree toolBox Shadow Generator
Craft CSS box-shadows visually and copy the code.
Open toolFree referenceMobile Screen Sizes
Viewport, resolution & DPR for popular phones.
Open toolFree toolPX to REM Converter
Convert px ↔ rem with any base font size.
Open toolFree toolAspect Ratio Calculator
Solve width/height for any aspect ratio.
Open toolFree toolFont Pairing Generator
Curated heading + body font pairings, live preview.
Open toolFree toolColor Converter
Convert HEX ↔ RGB ↔ HSL ↔ OKLCH, copy any format.
Open toolFree toolQR Code Generator
Any link → a QR code you can download as PNG or SVG.
Open toolFree toolMeta Tags Generator
SEO + Open Graph + Twitter tags with live previews.
Open toolFree toolCSS Clamp Generator
Fluid clamp() for responsive type and spacing.
Open toolFree toolBorder Radius Generator
Round each corner visually, copy the CSS.
Open toolFree toolType Scale Generator
Modular type scale → CSS variables or Tailwind.
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