About

A free, fast, in-browser tool for converting bitmap images into clean SVG vector art — no account, no upload, no watermark.

The Organic Contour Vector Engine converts PNG and JPG images into scalable SVG vectors using a leak-proof scanline polygon assembly pipeline. It is built to handle two quite different jobs well: organic artwork — photographs, paintings, illustrations — and flat graphics such as logos, signs, and text. Those need opposite things from a tracer, so the engine has a separate mode for each rather than one compromise setting.

How it works

Conversion runs in four stages. The engine first quantizes the image's colours down to a chosen palette — between 4 and 64 tones. It then flood-fills every contiguous same-colour region to find shape candidates. Next it heals tiny stray regions by merging them into their neighbours, which is what removes the specks left by sensor noise, JPEG compression, and anti-aliased edges. Finally it assembles the survivors into solid vector polygons.

That last stage is where the "leak-proof" part matters. Naive tracers produce shapes whose boundaries almost — but not exactly — line up, so hairline slivers of background show through between adjacent polygons, especially when the artwork is scaled up or printed. The scanline assembly pass builds adjacent shapes from shared exact boundaries, so those gaps cannot occur.

Two modes, deliberately

Photo / Art — Organic Contours preserves the irregular, textured character of a hand-made or photographic edge, and keeps the many small transitions that make a gradient read as smooth rather than banded.

Flat Graphic — Signs, Logos, Text does the opposite: it snaps to the image's genuine flat colours and traces simplified, geometric edges. On a logo pulled from a compressed JPG this is what collapses the anti-aliased halo and compression ringing back into solid colour, instead of faithfully reproducing every artifact.

Choosing the wrong one of these two is the most common reason a result disappoints. The guides cover how to tell, and what to change when the output is not what you wanted.

Privacy by design

All processing happens locally in your web browser. Your images are never uploaded to a server — they stay on your device, and we never receive them. This is not a policy promise layered on top of a server that could see your files; it is a consequence of where the code runs. You can confirm it by going offline once the page has loaded: the tool still converts. See the Privacy page for details on cookies and advertising.

Why it's free

The site is supported by the ads on the page. There is no paid tier, no sign-up, no trial that expires, and no watermark on the output — partly because a tool that runs entirely on your own computer costs nothing per conversion to operate. You keep full rights to whatever you put in and whatever comes out, and no attribution is required.

Where to start

The instructions walk through the four steps and document every control. The guides go deeper on specific jobs: vectorizing a logo from a low-resolution JPG, fixing a blotchy photo trace, and choosing between the SVG and PNG downloads.

Contact

Questions, bug reports, or feedback? Email mgg@mac.com. Reports that include the source image and the settings you used are the most useful.