LayerS Peek

Check it before you 3D Print it

Catch the Print that was going to fail — before you start it. See the faces that will need support, what the inside looks like, and whether it fits your bed. Free in your browser, or go further with the desktop app.

PixelForge Lab by PixelForge Lab
Everything you need to inspect your prints
STL and 3MF — free in the browser, no install required.

STL & 3MF Support

Load any common 3D print file. Full-colour 3MF from Bambu Studio, PrusaSlicer and more.

OBJ Support Desktop

Multi-body OBJ files, loaded and displayed the same way as STL and 3MF.

Full 3D Navigation

Orbit, zoom, pan and drag models with your mouse. Navigation cube, Fit View, Include View, perspective and orthographic modes.

Free Measure

Quick point-to-point distance readings in millimetres — click two points on the model.

Precise Measure Desktop

Vertex and edge snapping for pixel-accurate measurements, with axis-locked constrained mode.

Printer Build Plate Desktop

Overlay your printer's build plate in the viewport for size reference. All 11 Bambu Lab machines built in, plus any other printer — add your own bed size for Creality, Prusa, Snapmaker, Elegoo or anything else, and remove the ones you don't own.

Wireframe & Grid

Toggle wireframe mode to inspect geometry, plus a grid overlay for scale reference.

Quick Preview

Flick through a whole folder of models with the arrow keys — a big icon grid on the left, a live 3D preview on the right. Like your file explorer's photo viewer, but for STL, 3MF and OBJ.

Layer Preview

Watch your model build up layer by layer, just like a slicer preview — pick a layer height, scrub the slider or hit play. Purely visual, no slicing required.

Move, Rotate & Scale Desktop

Precise transform gizmo with per-axis handles, typeable exact values, and multi-select group transforms.

G-code Viewer Desktop

Load G-code files and scrub through layers with the built-in slider. Toggle travel moves on/off. Supports Bambu .gcode.3mf archives.

Multiple Models Desktop

Load several files into one scene instead of replacing what's open. Select, move and delete each one independently — the fastest way to check whether parts fit on a plate together.

Undo & Redo Desktop

Ctrl+Z and Ctrl+Shift+Z across every move, rotation, scale, addition and deletion.

Add Shape Desktop

Drop cubes, cylinders and spheres straight into the scene. Scale one to a known size as a physical reference next to your part.

Print Volume Check Desktop

Anything taller or wider than your selected printer's build plate gets outlined in red, re-checked live as you move and scale.


The web app is 100% free

No payment, no trial, no paywall — just your email so I can tell you when it improves. STL/3MF loading, full 3D navigation, Quick Preview, Layer Preview, Free Measure and Wireframe & Grid all work in your browser right now. Want OBJ files, Precise Measure, the Printer Build Plate overlay, Move/Rotate/Scale, multiple models, Undo/Redo, Add Shape or the G-code viewer? Those come with the desktop app below.


Try the paid tools free
No card, no signup — just find the golden egg.

There's a golden egg in the toolbar — in the free web app, and in the desktop app until you enter a licence key. Click it and a small Benchy sailing game opens.

⏳
Watch 5 videos
A 12-hour trial of the full desktop app. Play the game inside the desktop app to earn it — once per machine.
🏷️
Watch 10 videos
30% off the desktop app — applied automatically at checkout.

Sail around, collect the spools, watch at least half of each video for it to count. You get 24 hours to reach a milestone and you don't have to do it in one sitting — close it, come back, your progress is still there. The discount can be earned anywhere; the trial unlocks the desktop app, so play the game in there to earn it.


Get the desktop app
One-time payment. No subscription. All future updates included.
Windows Desktop
Desktop App
Full-featured native Windows application — no browser needed.
$5.99
One-time payment · Licence key delivered instantly · Free updates for life
  • Everything in the free web app
  • OBJ file loading
  • Move, Rotate & Scale transform tools
  • G-code viewer with layer slider
  • Printer Build Plate overlay
  • Precise Measure with vertex/edge snapping
  • Local file browser & native dialogs
  • Keyboard shortcuts customisation
  • Multiple models in one scene
  • Undo & Redo
  • Add Shape — cubes, cylinders, spheres
  • Print volume check

Every future update is free — buy once, keep it.
I'll email you when a new version is out. Nothing else, and you can unsubscribe from any of those emails.

Questions before you buy? Ask on Discord — I answer them myself.


How it works
Three simple steps — done in minutes.
1

Pay securely

Click the button above and pay by card through Stripe's secure checkout — no account needed.

2

Get your key instantly

You're redirected straight back with your license key on screen — no waiting, no email round-trip.

3

Download & activate

Install the desktop app, paste your key into the Unlock dialog, and everything unlocks immediately.