01Why the usual way fails
Grain effects in many tools are just a texture laid over the image, so they look flat and blur when you scale the file up. When a tool offers SVG, it often hides a PNG inside the vector file, which defeats the point of using vectors. Uploading client logos or private photos to a random converter is also a privacy risk you may not be allowed to take. And getting the balance right is tricky: too much grain and the subject disappears, too little and the effect is lost.
02How Grainform helps
Grainform turns an image into grain artwork right in your browser, and the image never leaves your device. You drop in a PNG, JPG, WebP or SVG file, adjust grain size, detail, contrast, color and background, and download the result. The SVG export is real vector, because each visible grain is written as its own circle instead of a picture inside the file. If you need a PNG, Grainform keeps the source size when your browser can handle it and offers a transparent background.
“The image is read and converted locally in your browser. Grainform does not send your image, filename, or export to a server.”
“Grainform writes each visible grain as its own SVG circle. It does not put a PNG inside the SVG.”
03Step by step
- Open Grainform and drop, choose or paste your image, or start with the sample.
- Adjust grain size and detail until the subject is still easy to recognise.
- Tune contrast and color, and pick a background color or Transparent.
- Check the preview, where a checker pattern marks the transparent area.
- Download a PNG for quick use or an SVG when you need to scale the art.
04Tips
- Pick SVG for anything that will be printed large or used on a website at many sizes. SVG exports stay vector at any size, while PNG files are reduced if they pass the device limit.
- Start with a high-contrast image. Logos and photos with a clear subject keep their shape better once they turn into grains, and the default Fine look is tuned to keep them recognisable.
- If the browser slows down, use a smaller source file. Very detailed images need more analysis, and running low on memory is the usual reason a conversion stalls.
- Plan the background before you export. A white or custom color is baked into the PNG, so choose Transparent if the art will sit on different backgrounds later.
05Questions
What is the largest file I can use?
Files up to 24 MB and 64 megapixels are accepted.
Source: grainform.appHow big can a PNG export be?
Up to a 3,840-pixel long edge on desktop and 3,072 pixels on mobile; larger images are reduced proportionally.
Source: grainform.appWhich browsers work?
Current desktop and mobile browsers that support canvas and Web Workers.
Source: grainform.app