3D Printer Slicer  ·  v1.91 beta
FolgerSlice

Slice. Preview. Print.

A modern, web-based 3D printer slicer with a live WebGL viewport, tree support generation, Klipper integration, and native belt printer geometry. No install. Just open and print.

Launch App See Features
3D
Live Preview
∞
Print Length
0
Installs Needed
1
Click to Print
Designed for real printers

Slice, preview,
and send.

FolgerSlice runs entirely in your browser. Drop in an STL, tune your settings, watch it slice in real time, then hit send — your G-code lands directly on the printer. No file managers, no USB drives, no separate print server UI.


→ Native Klipper / Moonraker integration
→ Live SSE progress stream during slice
→ Belt printer geometry support built in

BELT → Y 45° MODEL GRAVITY Z↑ OVERHANG FACE
Visual identity

The brand.

FolgerSlice
What it does

Every tool you
actually need.

01
Precision Slicer
Precise layer orientation, wall ordering, and infill. Supports standard Cartesian and belt printer geometries natively.
02
Tree Supports
Organic branching support structures that minimize material and contact surface. No rafts, no base plates — just clean, removable supports.
03
→
No Limits
No artificial axis caps. Slice your model at any size — standard build volumes and extended belt lengths both work out of the box.
04
3D Live Preview
WebGL viewport with Three.js. See your model, support trees, and layer slices in real time — before you commit to a print.
05
Moonraker Ready
Slice and send directly to your Klipper printer in one click. Live status, job queue, camera stream — all in the same interface.
06
Zero Install
Web-based, runs in any modern browser. No Python environment, no dependencies, no package manager. Open a URL and start slicing.
The app

See it in action.

folgerslice.com/app/
FolgerSlice — complex 3D test model with overhang detection
folgerslice.com/app/
FolgerSlice — tree support structures generated automatically
folgerslice.com/app/
FolgerSlice — isometric view with tree support on belt printer
Python 3.13 FastAPI Three.js WebGL Precision G-code Klipper / Moonraker Tree Support Engine Shapely / SciPy SSE Progress Stream Farm Print Queue Python 3.13 FastAPI Three.js WebGL Precision G-code Klipper / Moonraker Tree Support Engine Shapely / SciPy SSE Progress Stream Farm Print Queue

Precision slicing. Zero friction.

Launch FolgerSlice