Transparent PNG Generator

How to use

1. 1Choose a size preset, or type an exact width and height in pixels and use Swap to flip the orientation.
2. 2Pick a fill: Transparent for a fully blank image, or Solid color to fill with one color.
3. 3For a solid fill, choose a color and set the opacity, with the 8-digit hex shown for reuse in CSS or design tools.
4. 4Select a file format: PNG or WebP to keep transparency, or JPEG for the smallest file with a white background.
5. 5Press Download to save the image, or copy the data URL and the HTML or CSS snippet to paste into your project.

About this tool

Transparent PNG Generator creates a real image file at the exact pixel dimensions you choose, with either a fully transparent fill or a flat solid color, and it does it entirely in your browser. It solves two everyday needs that surprisingly few tools handle directly: producing a genuinely blank, transparent PNG, and producing a clean block of a single color as an image. In transparent mode the tool exports an image where every pixel has zero alpha, which is what people mean when they search for a blank transparent png, a 1 x 1 transparent pixel, a spacer image, or a transparent background image to layer over something else. There is no hidden white rectangle and no checkerboard baked into the file; the checkerboard you see in the preview is only a backdrop so you can tell where the image is see-through. In solid color mode you pick any color with the native color picker or a hex value, choose from common presets including a chroma green for keying, and set an opacity from 0 to 100 percent, which lets you export a semi-transparent overlay as well as an opaque block. The tool reports the matching 8-digit hex (#RRGGBBAA) for the color and opacity you pick, so you can reuse the exact value in CSS or a design file. Size presets cover the cases people reach for most: 1 x 1, square icon sizes from 16 up to 1024, social and blog dimensions like 1200 x 630 and 1080 x 1080, story and full HD frames, and a card size, while the width and height fields accept any value from 1 px up to 4096 px on each side with a swap button to flip the orientation. You can export as PNG, which is lossless and the safest choice for transparency, as WebP, which keeps transparency at a smaller file size, or as JPEG, which is the smallest option but has no alpha channel; when you pick JPEG with a transparent or partly transparent image the tool warns you and flattens the result onto white rather than producing black gaps. Alongside the download you get a copyable data URL and ready-to-paste HTML img and CSS background snippets built from that data URL, which is handy for prototypes, emails, and quick mockups. Useful for web developers who need a transparent placeholder while building a layout, designers who want a solid swatch or a colored backdrop at a fixed size, anyone testing an image upload field with a blank file, people making transparent canvases to draw or composite on, and creators who need a flat color background for a thumbnail, a video, or a virtual meeting. Everything is drawn on a 2D canvas and encoded with the browser's own image export, so the images you generate here are never uploaded.

Free to use. Works in your browser. No signup, no login.