SVG Slimmer

Traces a logo or icon, SVG or bitmap, as smooth curves, colour by colour, or tidies an SVG that's already well traced, then checks the result against the original pixel by pixel so you can see what, if anything, was lost.

Open an SVG or PNG or drop it here, or paste SVG code

Quality

Sets detail, smoothing and small-shape protection together. Adjust any of them below.

Colours

Palette

Percentages are each colour's share of the artwork, background left out. Click a colour once to lock it in, so it stays however far you reduce Most colours. Click again to leave it out, and its pixels go to the nearest colour left; a third click hands it back. Faded colours were merged away: click one to bring it back, locked.

Traced as stacked layers, bottom first. Each layer runs under the ones above it, so no gaps open between colours.

With Tidy these are the SVG's own colours, biggest first. Each one kept is a real colour from the file; a colour merged or left out takes the nearest kept one.

Most colours24

For photos, gradients and AI images. The closest colours merge until this many are left; small distinct ones, like an eye, are kept. A removed background counts as one of them.

Merge similar colours16

Colours closer than this are treated as one. It's a distance between colours, where black to white is 441: around 16 merges shades you can't tell apart, 80 merges clearly different ones, such as cream into white. Fewer colours make a smaller file.

Remove the background

Leaves out the colour around the artwork, such as a PNG's white background. The same colour inside the artwork, like white in an eye, is kept.

Fix blended edges

Where two colours meet, the soft pixels between them only take one of those two colours. Stops a fringe of a third colour, like pale grey along a dark edge.

Clean up edges0

Smooths out speckle and ragged edges from noisy or upscaled images before tracing.

Detailtrace grid

Pixels along the long side. Higher keeps finer detail and makes a bigger file.

Smoothing0.5

How far a curve may drift to merge into fewer, longer ones. opttolerance

Protect small shapes6%

Shapes smaller than this share of the image, such as eyes, letters and thin lines, are traced with almost no smoothing. Big curves still get the full amount.

Corners1.0

Lower keeps sharp corners, higher rounds them off. At 0 every edge is a straight line, which is often smaller on busy artwork such as pen hatching. alphamax

Remove specks16 px

Any patch of colour smaller than this takes the colour around it, in the PNG and the trace. Measured at 2048 px across and scaled to the size you export.

Keep thin slivers

Speck removal spares long thin patches, such as the gaps between pen strokes and fine lines, and only removes round dots. Stops sketches darkening, at the cost of a bigger file.

Decimal places

that differs by at most %

Tries each detail and smoothing setting, straight lines, stronger colour merging and, for an SVG, Tidy. Keeps the smallest file that stays this close to the original.

…

Update automatically

Original

Slimmed

Zoom 1× Background

SVG code