Is this Thingiverse's Customizer?
No. It is an independent tool that runs real OpenSCAD in your browser. Thingiverse is not involved, and you need no Thingiverse account.
OpenSCAD Customizer online: customize Thingiverse .scad files in your browser
Found a customizable model on Thingiverse — or anywhere else — and want it in your own size? Load its files here. Real OpenSCAD reads the Customizer comments in the code and gives you sliders, drop-downs and checkboxes; every change re-renders in your browser, and the STL you export is exactly what you see. No account, no waiting in a queue, and the files never leave your computer.
Customize a Thingiverse model in four steps
01
Download the files
On the model's page, download all of its files and unzip them. A customizable model comes with its .scad file; keep everything that came with it in one folder.
02
Load the folder
Open the customizer and click “Load project folder”, or drag the folder onto the page. If there are several .scad files, pick the main one in the entry list.
03
Change the parameters
The parameters appear in the groups the author set up. Each change re-renders the model half a second later.
04
Export STL
Save a binary STL of exactly what is on screen and slice it as usual. STEP is one click away if you want to keep working in CAD.
Which Customizer comments it understands
OpenSCAD itself reads the parameters, by the same rules as the Customizer in desktop OpenSCAD, so most files written for Thingiverse's Customizer work as they are.
| In the .scad | You get |
|---|---|
| width = 60; // [20:150] | A slider from 20 to 150 |
| wall = 2; // [1:0.5:5] | A slider in steps of 0.5 |
| shape = "round"; // [round, square, hex] | A drop-down |
| holes = 4; // [2:Two, 4:Four, 6:Six] | A drop-down with labels |
| lid = true; | A checkbox |
| label = "Tools"; | A text box |
| size = [40, 30, 20]; | One box per number |
| // Lid clearance (mm) | The comment line just above a variable becomes its label |
| /* [Lid] */ | Starts a group (a tab on Thingiverse) |
| /* [Hidden] */ | Nothing after it is shown |
Only plain values assigned at the top of the file, before the first module, become parameters — the same rule as desktop OpenSCAD.
Thingiverse's helpers are built in
Many customizable models load Thingiverse's utils/build_plate.scad, Write.scad for lettering, or MCAD for gears and fasteners. All of them are built in, and so is BOSL2, so these files work without hunting for the libraries.
No model at hand? Start with one of these
Each opens already rendered, with its parameters in the panel. Change them, then export the STL. No sign-up.
Weld-neck flange
Flange, pipe and bolt groups: change the bolt count and the holes respace around the circle.
Open and customize →
Meshing spur gears
Tooth counts, module and bores as parameters; the gear library sits in lib/ beside the entry file.
Open and customize →
Parametric box with lid
Two groups, Box and Lid: size, wall, corner radius, lid height and fit.
Open and customize →
Compared with the Customizer in desktop OpenSCAD
| Desktop OpenSCAD | This page | |
|---|---|---|
| Install | Download and install | Open a web page |
| Parameter panel | Window → Customizer | Opens with the model |
| When a value changes | The preview updates if automatic preview is on | It re-renders half a second later |
| Saving your values | Parameter sets in a .json file | Written into the .scad itself |
| Export | STL, 3MF, OFF, AMF and more | STL, and STEP for CAD software |
FAQ
Do customizable models from Printables or MakerWorld work?
Yes, if the model comes as a .scad file with Customizer comments; where you downloaded it does not matter.
Are my files uploaded?
No. OpenSCAD runs inside your browser tab; the files and the values you pick stay on your computer.
Can I keep my settings?
The values you pick are written into the .scad code, and the browser keeps the code for your next visit. For a single-file model, “Copy link” puts the customized code into a link you can bookmark or share.
Can I load a parameter set (.json) from desktop OpenSCAD?
Not yet. Set the values with the sliders; they are written into the code itself.
The model needs STL, PNG or font files. Do those work?
Yes: keep them in the folder you load. import() and surface() read STL, OFF, OBJ, AMF, DXF, SVG, DAT and PNG files, and .ttf / .otf fonts in the folder can be used. The browser keeps the .scad files between visits but not these data files, so load the folder again next time.
Is it free?
Yes. No sign-up and no limits.
Related
OpenSCAD to STL →
Got a .scad without Customizer comments? Convert it straight to STL.
OpenSCAD online viewer →
Preview any .scad file with the desktop F5 colours.
OpenSCAD to STEP →
Need the part in CAD software? Export real B-rep STEP.
ChatGPT OpenSCAD to STL →
Got OpenSCAD code from ChatGPT? See it, fix it, export STL.