Free online tools
Small, fast utilities for developers, designers, writers and teams. No sign-up, no limits, and nearly everything runs in your browser so your data stays with you.
DesignPage 1 of 2
Colour, gradients, icons and share previews.
DesignAspect Ratio CalculatorFind the aspect ratio of any width and height, resize while keeping it, and browse common video, social and print ratios with CSS you can copy.
DesignBackground RemoverCut the background out of a photo in your browser with an open-source model or a solid-colour key, then save a transparent PNG. No upload.
DesignBusiness Card MakerDesign a front and back business card, then download a print PDF with bleed and crop marks or 8-up and 10-up A4 sheets. Free, no sign-up, private.
DesignCertificate MakerCreate printable certificates from classic, modern or minimal templates, and generate hundreds from a CSV as one PDF or a zip of PDFs. Free and private.
DesignColor Palette from ImageExtract the dominant colours from any image with k-means, copy HEX, RGB and HSL values, and export CSS variables, SCSS or a Tailwind config.
DesignColour Palette and Contrast CheckerCheck WCAG contrast, get a nearest passing colour, convert HEX, RGB, HSL and HSV, and build palettes you can export as CSS variables, Tailwind JSON or SCSS.
DesignCSS Gradient GeneratorDesign linear, radial and conic CSS gradients with unlimited colour stops and alpha. Copy the CSS or a Tailwind class, or download a 1920x1080 PNG.
DesignCSS Shadow, Radius and Glass GeneratorBuild layered box shadows, custom border radius shapes (including 8-value blobs) and glassmorphism with a live preview. Copy CSS or Tailwind classes.
DesignDevice Mockup GeneratorPlace a screenshot inside a clean phone, tablet, laptop or browser frame on a gradient or solid background, or beautify it. Flat design, PNG export.
DesignFavicon GeneratorTurn a logo or a few letters into a full favicon set: ICO, PNG sizes, Apple touch icon, web manifest and the HTML tags. Download everything as a zip.
DesignImage CompressorShrink JPG, PNG and WebP images in your browser with a quality slider, see the before and after size, and download a batch as a zip.
DesignImage Format ConverterConvert images between PNG, JPG, WebP and AVIF in batches, right in your browser. AVIF is offered when your browser can encode it.
DesignImage Resizer and CropperCrop an image freehand or to a preset ratio, set exact pixel sizes, rotate and flip it, then download PNG, JPG or WebP. Runs in your browser.
DesignImage Watermark ToolAdd a text or logo watermark to many images at once, with position, size, opacity, rotation and tiling, then download them in a zip. All in your browser.
DesignLink in Bio Page MakerCreate a link-in-bio page with your name, tagline, up to 30 links and a theme, publish it at a shareable link and edit it later with a private manage link.
DesignMeme and Quote Image MakerMake classic top and bottom text memes from any picture, or beautiful quote cards in free fonts and social sizes. Download as PNG, no sign-up.
DesignMeta Tag and Open Graph Preview BuilderPreview how a page looks in Google, Facebook, X and LinkedIn, then copy ready-made title, description, Open Graph and Twitter tags or a Next.js metadata object.
DesignOG Image GeneratorDesign a 1200 x 630 Open Graph share image from six templates with your title, logo and colours, download the PNG and copy the meta tags.
DesignPlaceholder Text and Image GeneratorGenerate lorem ipsum as paragraphs, sentences, words, lists or HTML, plus placeholder images in any size and colour as PNG or SVG.
DesignSignature MakerDraw your signature with smooth strokes or type it in handwriting fonts, then download a transparent PNG or a scalable SVG. Nothing is uploaded.
DesignSocial Media Image ResizerResize one image to every current social size at once, with fit or fill, a focus point and safe zone overlays. Download a zip. Runs in your browser.
DesignTailwind Color Shade GeneratorTurn one colour into a full 50 to 950 Tailwind-style scale with contrast hints, and export a Tailwind v3 config, a v4 theme block or CSS variables.
DesignWhiteboard Flowchart MakerDraw flowcharts on an infinite whiteboard with shapes, sticky notes, a freehand pen and connectors that follow shapes. Export PNG, SVG or JSON. Private.
DesignWireframe SketcherSketch website and app wireframes from a library of low-fidelity components, across multiple pages, with grid snapping. Export PNG, a multi-page PDF or JSON.