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Converters
Font Size Converter
Convert between px, rem, em or custom font size types.
SVG to base64
Convert SVG markup to Base64. Handy to convert SVGs to CSS.
WKB to GeoJSON
Convert WKB (Well Known Binary) values to GeoJSON. Or from GeoJSON to WKB
Math
Aspect Ratio Calculator
Calculate aspect ratio. Supports calculating width, height or the aspect ratio value.