Check whether an image has transparency
See whether the source image has an alpha channel, how many pixels are opaque or transparent, and preview the alpha mask locally in the browser.
See whether the source image has an alpha channel, how many pixels are opaque or transparent, and preview the alpha mask locally in the browser.
Nearby tools from the catalog that fit the same job or workflow.
Make a color transparent
Pick a color in one image, remove it with tolerance and edge smoothing, and export a transparent PNG locally.
Flatten PNG transparency
Replace transparency with a solid or gradient background and export a flat PNG for ready-made sharing.
Inspect image details
Inspect image dimensions, file size, aspect ratio, transparency, and dominant colors directly in the browser.
Add shadow to cutouts
Add a soft or drop shadow behind one transparent cutout and export PNG locally.
Convert AVIF to PNG
Convert one AVIF into PNG locally and keep transparency when the source contains alpha.
Clean cutout edges
Clean halos, soften cutout edges, reduce spill, and preview the result on multiple backgrounds before PNG export.
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A quick way to understand who this helps, what it solves, and where it connects next.
People preparing PNGs, WebP graphics, stickers, overlays, and listing assets who need a clear answer about alpha support and visible transparency
Verifying whether transparency exists and how much of the image is opaque, transparent, or translucent
Capture transparency-checking intent with a diagnostic tool that is more specific than a generic image analyzer
Another You and Cleanor
These sections explain the job in plain language and set expectations for what the tool should do well.
People asking about transparency usually want a clear yes-or-no plus useful alpha evidence, not a general edit tool with another checkbox hidden inside it.
Short answers for the questions people usually have before trying a utility like this.
No. JPG does not support an alpha channel, so the checker will report that the source format has no alpha support.
No. The alpha analysis and preview happen locally in the browser.
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