Free Website & Developer Tools
26 free tools for designers and developers. Calculators, converters, and utilities. No signup required.
Website Calculators
Website Design Cost Calculator
Calculate your exact website design and development cost. Toggle features like e-commerce, SEO, animations, and more.
Website ROI Calculator
Calculate your website's return on investment. See projected revenue, ROI percentage, and payback period.
Website Traffic Calculator
Estimate website traffic from SEO and paid ads. Compare organic vs paid costs and plan your budget.
CSS Unit Converters
PX to REM
Convert pixels to rem units with adjustable base font size.
REM to PX
Convert rem units back to pixels instantly.
PX to EM
Convert pixels to em units based on parent font size.
EM to PX
Convert em units back to pixels instantly.
PX to VW
Convert pixels to viewport width for fluid layouts.
PX to VH
Convert pixels to viewport height for responsive designs.
PX to Percent
Convert pixels to percentage relative to parent element.
PT to PX
Convert points to pixels for print-to-screen conversion.
Code Converters
Developer Tools
Chmod Calculator
Calculate Linux/Unix file permissions with interactive toggles. Get octal and symbolic commands.
Base Converter
Convert between binary, octal, decimal, and hexadecimal number systems.
CSV to SQL
Convert CSV data to SQL INSERT statements with auto type detection.
Bandwidth Calculator
Convert Mbps, Gbps, MBps and calculate file transfer times.
String Case Converter
Convert between camelCase, snake_case, kebab-case, PascalCase and more.
Unit Converters
Color Converters
All Tools (26)
Complete list of all tools, sorted alphabetically.
Bandwidth Calculator
DeveloperConvert Mbps, Gbps, MBps and calculate file transfer times.
Base Converter
DeveloperConvert between binary, octal, decimal, and hexadecimal number systems.
Celsius to Fahrenheit
UnitConvert °C to °F instantly with weather, cooking, and body temp references.
CGPA to Percentage
UnitConvert CGPA to percentage using ×9.5 formula with grade classification.
Chmod Calculator
DeveloperCalculate Linux/Unix file permissions with interactive toggles. Get octal and symbolic commands.
CSS to SCSS
CodeConvert flat CSS to nested SCSS with variables and & syntax.
CSS to Tailwind
CodeConvert CSS code to Tailwind CSS utility classes instantly.
CSV to SQL
DeveloperConvert CSV data to SQL INSERT statements with auto type detection.
EM to PX
CSSConvert em units back to pixels instantly.
HEX to HSL
ColorConvert hex colors to HSL for intuitive color adjustments.
HEX to RGB
ColorConvert hex color codes to RGB values with live preview.
HSL to HEX
ColorConvert HSL color values to hex codes for CSS.
PT to PX
CSSConvert points to pixels for print-to-screen conversion.
PX to CM
UnitConvert pixels to centimeters with adjustable DPI for screen or print.
PX to EM
CSSConvert pixels to em units based on parent font size.
PX to Percent
CSSConvert pixels to percentage relative to parent element.
PX to REM
CSSConvert pixels to rem units with adjustable base font size.
PX to VH
CSSConvert pixels to viewport height for responsive designs.
PX to VW
CSSConvert pixels to viewport width for fluid layouts.
REM to PX
CSSConvert rem units back to pixels instantly.
RGB to HEX
ColorConvert RGB color values to hex codes instantly.
String Case Converter
DeveloperConvert between camelCase, snake_case, kebab-case, PascalCase and more.
Website Design Cost Calculator
CalculatorCalculate your exact website design and development cost. Toggle features like e-commerce, SEO, animations, and more.
Website ROI Calculator
CalculatorCalculate your website's return on investment. See projected revenue, ROI percentage, and payback period.
Website Traffic Calculator
CalculatorEstimate website traffic from SEO and paid ads. Compare organic vs paid costs and plan your budget.
YAML Converter
CodeConvert between YAML and JSON instantly for Docker, K8s, and configs.