Updated October 2026
Photoshop is the other common route artists use to turn a photo into stencil-ready line art — but unlike Procreate (covered on the Procreate comparison page), Photoshop isn't hand-tracing. It's a different automated/semi-automated pipeline built from general-purpose filters, and it genuinely overlaps more with what this tool does than Procreate does. Here's how the two compare.
This tool runs a fixed chain — grayscale conversion, a box blur ("Smoothing"), a Sobel gradient edge detector compared against a threshold ("Sensitivity"), optional line dilation ("Line thickness"), optional invert — detailed on the How It Works page. A typical Photoshop stencil workflow strings together general image-editing tools toward a similar goal: duplicate the layer, desaturate, boost contrast with a Levels or Curves adjustment, apply the Find Edges filter (Photoshop's own edge detector) or a Threshold adjustment layer to force the image to pure black and white, then clean up stray marks by hand with the brush and eraser tools.
Find Edges and Threshold are doing conceptually similar work to this tool's Sobel-plus-threshold step — both are hunting for contrast boundaries and collapsing the image to lines. The real difference is exposure of control and manual cleanup: this tool gives you three sliders and an instant live preview; Photoshop gives you full access to each intermediate step (you can mask out a specific region, paint in a line the filter missed, or erase one it invented) at the cost of doing that work by hand, layer by layer.
This tool: upload, adjust three sliders, download — typically under a minute total, regardless of image complexity. A Photoshop pipeline run well takes longer even for a skilled user, because Find Edges and Threshold rarely produce a clean result straight out of the filter; the manual touch-up pass (erasing noise, reconnecting broken lines, painting back a line that got thresholded away) is where most of the time actually goes.
This is where Photoshop wins outright. Because it operates in layers, you can mask the Find Edges result against the original photo, selectively lower the threshold in one region without affecting the whole image, or use the brush tool to manually close a gap in a line the algorithm fragmented. This tool's sliders are global — "Sensitivity" raises or lowers the detection threshold for the entire image at once, so a photo that needs different treatment in different regions (a face against a cluttered background, for example) can't be locally adjusted the way a masked Photoshop layer can.
Photoshop requires a paid Creative Cloud subscription and meaningful familiarity with layers, adjustment layers, and selection tools to use this workflow effectively — it has a real learning curve beyond just owning the software. This tool is free, requires no account or install, and works in any modern browser.
Running a photo through this tool first for a fast rough pass, then opening the downloaded PNG in Photoshop for final cleanup (erasing a stray line, manually closing a gap, nudging thickness in one spot) combines the speed of automated detection with the precision of manual layer-based editing — often faster overall than starting the Photoshop pipeline from a raw photo.
If the source photo is busy, low-contrast, or needs region-specific treatment — a portrait where the face needs a different sensitivity than the cluttered background behind it, for instance — Photoshop's masking and layer control handles that kind of per-region nuance that a single global slider set here cannot. See choosing a good source photo for what separates a photo that this tool handles well from one that needs that extra manual control.
Does this tool use the same algorithm as Photoshop's Find Edges filter? Not identically — this tool uses a Sobel gradient operator specifically (detailed on the how it works page); Find Edges uses Photoshop's own proprietary edge-detection kernel. Both are gradient-based edge detectors and tend to produce broadly similar results on the same photo, but the exact lines won't match pixel-for-pixel.
Can I open this tool's PNG output in Photoshop for further editing? Yes — it's a standard PNG, fully editable as a normal layer in Photoshop or any other image editor.
Is Photoshop's result always better? Not always — for a clean, high-contrast source image, this tool's automated result and a careful Photoshop pipeline often converge on a nearly identical outline; Photoshop's advantage shows up specifically on harder source photos that need local, region-by-region control.