plotterLens

plotterLens turns your phone's camera into a pen-plotter sketchbook. Point it at something and watch it redraw the scene as plotter line art, live: waves, spirals, contours, cross-hatching, etchings and more. When you like what you see, save it as an SVG that's ready to plot on a terraPen or any other pen plotter.

Open plotterLens

Free, with no account or app store needed. It runs in your phone's browser.

On a computer? Scan this with your phone.

Plotted for real

Everyday things, snapped on a phone and drawn in ink on a terraPen.

A table spread with plots made with plotterLens — A table of plots

A Duotone plot of toilet rolls in purple and orange ink — Loo rolls, Duotone

A multi-pen plot of a pair of Crocs in green, black and blue ink — Crocs, three pens

A plot of a litter bin drawn as a dense maze of lines — Litter bin

A Contour plot drawn in thin green lines — Contour

A plot of a computer keyboard — Keyboard

One scene, many styles

The same scene, redrawn five ways. Swipe the carousel and the plot changes live.

plotterLens on a phone, drawing the same scene in the Spiral style — Spiral

plotterLens on a phone, drawing the same scene in the Contour style — Contour

plotterLens on a phone, drawing the same scene in the Blobs style — Blobs

plotterLens on a phone, drawing the same scene in the ASCII style — ASCII

plotterLens on a phone, drawing the same scene in the Duotone style — Duotone

How it works

Open it on your phone and tap the shutter to start the camera.
Swipe through the styles. Each thumbnail previews that style on your picture, and the plot updates as you move the phone.
Tap the shutter to freeze the frame, then fine-tune by dragging on the picture: left and right for more or fewer lines, up and down for contrast.
Save it to the gallery and download the SVG, sized in millimetres for the paper you chose.

plotterLens camera view with the Duotone style selected in the style carousel

What it does

Twenty drawing styles, including Waves, Spiral, Contour, Flow, Hatch, Engrave, Etch, Loop, Snowflake, Voronoi and Ridges
Up to four pens. Split a plot by layer, by gradient or by area of the picture, with each pen on its own SVG layer so your plotter software can pause for a pen change. You can also save each pen as its own file.
Focal point. Long-press to drop a point that the style pulls towards or pushes away from.
Portrait, landscape or square paper, with live line length and line count
A gallery on your phone that keeps each plot's SVG, the photo it came from and its settings, so you can come back and re-edit
No camera? Load a photo from your gallery instead.

plotterLens settings sheet with sliders for fine-tuning the Duotone style

Private by design

Everything happens on your phone. Your camera feed and photos are never uploaded, and saved plots stay on your device until you choose to download or share them.

The plotterLens gallery, showing saved plots in several styles

Install it like an app

plotterLens is a web app, so it installs straight from the browser with no app store:

iPhone / iPad (Safari): tap Share, then Add to Home Screen.
Android (Chrome): tap Install when prompted, or use Install in the app's settings.

Once it's installed, it opens full screen, works offline and keeps your settings. Updates arrive automatically.

From phone to paper

Open the SVG in terraForge, our free plotting app, to place it on the bed, generate G-code and send it to the machine. It also works with any other plotter software that reads SVG.