FOCUSED PNG TOOL · FREE ONLINE IMAGE TOOLS

Trim Transparent PNG

Crop transparent padding from PNG artwork with an alpha threshold, side-by-side preview and exact output dimensions. Remove a plain background first or refine soft edges.

Browser processingOriginal-size exportsPreview + staged edits

1. Open an image

Choose file

PNG, JPG or WebP · up to 20 MiB, 8 million pixels. Drop one file anywhere in the workspace.

No image loaded.

2. Trim Transparent PNG

Task / extra operation

Choose mask image

No mask selected · up to 20 MiB and 4 million pixels.

Brightness and RGB channels are multiplied by the mask’s alpha. Outside a contained or original-size mask stays transparent, including when inverted. Fit uses nearest-neighbor sampling.

Mask fitRead mask fromApply transparencyInvert maskCustom palette · 2–32 hex colorsColorSecond / replacement colorAmount / threshold · %Color tolerance · %Match-edge softness · %Edge radius · pixelsLevels per RGB channelCell / band size · pixelsRepeatable seedGradient direction

Preview starts from the current working image. Keep an edit to chain operations. Original upload remains available with Reset.

A higher alpha threshold can discard faint shadows and antialiased edges. A completely transparent image has no visible bounding box; use visible pixels or a lower threshold to calculate a crop.

3. Preview & export

Choose an image or try the example.

ShowPreview backgroundClick the working image to pick a color.

Working image · click to pick

Your image will appear here.

Operation preview

Preview an operation to compare.

Load settings

Pixel operations work with browser-decoded 8-bit RGBA. They can discard source metadata, color profiles or higher bit depth. PNG compression compares decoded pixels, not byte-identical files. Animated images are rejected here; use animation tools instead.

When to use Trim Transparent PNG

Remove unwanted padding around sprites, icons, signatures and logos.

A higher alpha threshold can discard faint shadows and antialiased edges. A completely transparent image has no visible bounding box; use visible pixels or a lower threshold to calculate a crop.

Using Trim Transparent PNG

Crop transparent padding from PNG artwork with an alpha threshold, side-by-side preview and exact output dimensions. Remove a plain background first or refine soft edges.

Open a PNG, JPG or WebP, or try the example. Generators can begin without a file.
Start with a quick preset or adjust the main task controls. Preview the change and compare it with the working image.
Download the result PNG. Keep edit commits a preview for a next operation; Undo and Reset original help you compare alternatives.

Example

Remove unwanted padding around sprites, icons, signatures and logos.
A higher alpha threshold can discard faint shadows and antialiased edges. A completely transparent image has no visible bounding box; use visible pixels or a lower threshold to calculate a crop.

Questions & answers

What is the main purpose of this tool?

Remove unwanted padding around sprites, icons, signatures and logos. A higher alpha threshold can discard faint shadows and antialiased edges. A completely transparent image has no visible bounding box; use visible pixels or a lower threshold to calculate a crop.

Are images uploaded for processing?

Image processing runs locally in your browser. Public pages can also load advertising and optional Analytics, as described in the privacy information.

Can I use large or animated images?

Still images are limited to 20 MiB and 8 million pixels. Animated images are rejected here; use the APNG or GIF tools.

Does export preserve the original file exactly?

Pixel operations use decoded 8-bit RGBA and encode a new PNG. Higher bit depth, metadata and color-profile details may change. Compare the preview and retain your original.