Invite-only Beta

Trace your reference.
Stay out of the light.

When your projector sits straight in front of the canvas, you cast a shadow every time you lean in to trace. Move it to the side and the problem disappears — but the image lands skewed. ProTrace corrects that automatically. Upload your reference, drag four handles to your canvas corners, and the distortion straightens out.

Try ProTrace Beta access by invitation
Artist tracing at an easel with projector to the side

How it works

Three steps from upload
to tracing

Step 01Upload

Pick your canvas size and drop in your image

Enter the dimensions of your canvas — width and height, in whatever unit you prefer. Then drop in the reference photo you want to trace. ProTrace uses those measurements to keep everything in proportion.

Inches, centimeters, or pixels JPEG · PNG · WebP · HEIC (iPhone photos) Drag and drop or browse
Step 02Adjust

Fine-tune before you project

Crop and rotate the image to fit exactly what you want to trace. Dial in brightness and contrast, or switch to an edge-outline mode that converts any photo into a clean sketch — useful for busy or detailed references.

Crop with canvas aspect ratio locked Brightness & contrast sliders Edge outline mode turns photos into sketches Paint brush to add or remove detail
Step 03Project

Drag the corners onto your canvas

Tap Project and the image appears fullscreen. Four handles sit at the corners of the image — drag each one to match the corresponding corner of your canvas in the projection. The warp corrects in real time as you drag.

Four draggable corner handles Live correction as you drag Color, grayscale, or edge-sketch modes Save Project to a file — reload any time on any device

See it in action

Why ProTrace

Built for the way artists actually work

Trace without blocking your own light

The classic problem with projection tracing: your body gets between the projector and the canvas the moment you lean in. Move the projector to the side and your shadow stays out of the picture entirely — ProTrace handles the geometry.

One device is all you need

Run ProTrace on whatever is connected to your projector — a laptop, tablet, or phone. Open the browser, upload your image, and project. No apps to install, no second device, no account required during the beta.

Image prep that actually helps

Crop to exactly the portion you want, boost contrast so faint details read clearly, or switch to an edge-outline view that strips color and leaves only the lines — much easier to trace over for detailed work.

Up and tracing in under a minute

Drop in your image, tap Project, drag four handles — that's the whole setup. Hit Save Project to keep everything: your image, adjustments, and corner positions. Load it back next session and you're projecting in seconds.

Works at any projector angle

Whether your projector is slightly off to the side or at a steep angle from below, ProTrace computes the full perspective correction from your four handle positions. The more extreme the angle, the more it helps.

Color, grayscale, or edge sketch

Switch projection modes depending on what your eye needs. Color for full reference, grayscale to reduce distraction, or edge-sketch when you just want the outlines — each mode is one tap away while you're projecting.

FAQ

Common questions

Any projector works — full HD, HD, or older models. ProTrace doesn't need to know your projector's specs. You just connect it to your device, open ProTrace in the browser, and project like you normally would.
When you drag the four corner handles onto your canvas corners, ProTrace uses those four points to compute a full perspective warp — the same math used in professional photogrammetry software. It pre-distorts your image in the opposite direction of the projector's angle, so when the light hits the canvas, everything lands square and proportional. The correction updates live as you drag, so you can see it snap into place.
Only the first time per projector position. Once you've dragged the handles to your canvas corners, hit Save Project — this downloads a small file with your image, crop, and corner positions. Next session, load that file from the start screen and everything is restored exactly as you left it.
JPEG, PNG, WebP, and HEIC — the format iPhones use by default. You can shoot a photo on your phone and upload it directly without converting anything first.
Run ProTrace on the device that's connected to your projector — laptop via HDMI, tablet via USB-C adapter, phone via AirPlay or a display adapter. Open ProTrace in the browser, tap Project, and the image fills the screen. Mirror or extend your display to the projector as you normally would for any other content.
No. Your image is processed entirely in the browser and never sent to a server. Nothing is stored anywhere automatically — if you want to save your work, use the Save Project button to download a file to your own device.
Yes — ProTrace is fully touch-friendly. Pinch to zoom, tap and drag the corner handles, and the layout adapts to portrait and landscape. iOS Safari and Android Chrome are both supported.
ProTrace is currently in a private, invite-only beta. If you received a beta invitation, use the link and password provided. Wider access will open in a future release.

Ready to try it?

Invite-only beta — if you have access, your canvas is waiting.

Open ProTrace