The Screenshot Beautifier turns a plain, hard-edged screen grab into a polished, share-ready image. Drop a screenshot in, wrap it in a gradient or solid background with generous padding, soften the corners, drop a realistic shadow underneath, optionally add a macOS or browser window frame, and export a crisp high-resolution PNG — all without leaving your browser. It is built for developers writing documentation, founders posting product shots, designers preparing slide decks, support teams annotating bug reports and anyone who wants their screenshots to look intentional instead of accidental.
Raw screenshots are functional but ugly. Their straight edges butt up against the surrounding page, they sit flat with no depth, and a UI capture taken on a white app against a white slide simply disappears. The fix that design tools and marketing teams have used for years is the same one this tool automates: add breathing room, set the capture on a coloured backdrop, round the corners and lift it with a shadow. The result reads as a deliberate asset. This tool gives you those controls directly, with live preview, and keeps the whole pipeline on your machine.
How it works
Everything runs on the HTML canvas element. When you drop, click or paste an image, it is decoded locally into an in-memory bitmap — no network request is made. On every change the tool re-composites the scene from scratch: it fills the canvas with your chosen background (a linear gradient computed at your chosen angle, a flat colour, or transparency shown as a checkerboard), centres the screenshot inside the padded area, draws a rounded-rectangle drop shadow beneath the whole block, clips the image to rounded corners, paints the optional window chrome with traffic-light dots and a title, and finally strokes an optional inset border on top.
The export scale multiplies the canvas resolution so a 2x or 3x export stays razor sharp on retina displays and in print. Because the renderer is a single pure function, the preview you see is pixel-identical to the file you download. The PNG is produced with canvas.toBlob, so you can either save it as a file or copy it straight to your clipboard where your browser supports image clipboard writes.
Example
Say you captured a 1280×800 dashboard screenshot for a blog post. Drop it in, choose the Grape gradient preset, set padding to 14%, corner radius to 16px and shadow to 45%, then switch the frame to Browser bar and type your app’s URL as the title. The preview instantly shows your dashboard floating on a purple gradient inside a faux browser window with a soft shadow. Pick 2x export and download a roughly 1700×1200 PNG that looks at home in documentation, a landing page or a social post. Switch the canvas ratio to 1:1 instead and you get a square crop ready for Instagram or a thumbnail. Every adjustment is non-destructive — your original file is untouched, and your style choices are remembered in this browser for next time.
Because the image is processed entirely on your device, even sensitive screenshots — internal dashboards, customer data, pre-release UI — never touch a server.