Free browser utilities

Design tools

Find a tool for text, code, calculations, images or network information.

39 tools

Aspect Ratio CalculatorFind an image ratio and calculate a matching height for a new width.Border Radius GeneratorCreate four corner radii and preview the result.Color Contrast CheckerCompare two opaque colors against WCAG text contrast thresholds.Color Palette GeneratorSuggest a five-color hue palette from a HEX color.Color Shade & Tint GeneratorCreate a lightness scale from a validated HEX color.CSS Box Shadow GeneratorBuild and preview a CSS shadow with separate offset, blur and spread.CSS Button GeneratorCreate a button style with editable color, padding and corner radius.CSS Cursor ReferencePreview common CSS cursors and copy the declaration.CSS Filter GeneratorBuild blur, brightness, contrast and grayscale CSS filters.CSS Font Size ConverterConvert px, rem, em and typographic points with explicit base sizes.CSS Gradient GeneratorCreate and preview linear or radial two-color gradients.CSS Grid GeneratorPreview a repeated column grid and copy its CSS.CSS Transform GeneratorBuild a translate, rotate and scale transform.CSS Triangle GeneratorGenerate a border-based triangle in the selected direction.Flexbox CheatsheetGenerate a small Flexbox reference for alignment, wrapping and gaps.Glassmorphism CSS GeneratorCreate a translucent surface with backdrop blur.Grayscale Image ConverterConvert a decoded image to grayscale PNG.HEIC to JPGConvert supported HEIC images locally.HEX to RGB & HSL ConverterValidate HEX colors and convert them to RGB, HSL and alpha values.Image Brightness & ContrastAdjust brightness and contrast separately and export PNG.Image CompressorCompress JPG, PNG and WebP files in your browser.Image Dimensions CheckerRead decoded width, height and source file size.Image Palette ExtractorEstimate dominant colors from a resized local image sample.Image Pixel Color PickerRead the exact RGBA value at a chosen decoded-image coordinate.Image ResizerResize an image with an optional locked aspect ratio.Image Rotator & FlipperRotate by a quarter turn and optionally flip the source image.Image to Base64 EncoderEncode a validated local image as a data URL.Image to JPEG ConverterConvert a decoded image to JPEG with a white transparency background.Image to PNG ConverterDecode a supported image and export a PNG file.Image to WebP ConverterConvert a decoded image to WebP at your selected quality.JPG to PDFPlace images on PDF pages while keeping their proportions.Merge PDFCombine pages from local PDF files.Neumorphism Shadow GeneratorCreate paired light and dark shadows from a background color.Opacity ConverterConvert an opacity fraction, percentage and hexadecimal alpha byte.PDF to JPGRender PDF pages as images.QR Code GeneratorCreate QR images locally.SVG Dot Pattern GeneratorGenerate a tiled dot pattern as SVG source with a live preview.Text HighlighterRecognise and highlight English text in images and PDFs.Z-index Scale ReferenceCopy an example layering scale and an editable positioned element.