Parametric Parts Tray Generator
Create a printable open-top tray with adjustable dimensions, wall thickness, and an optional divider.
tools
Free 3D Printing Tools and Calculators
Free browser-based tools for makers - calculators, converters, viewers, and parametric STL generators. No accounts, no uploads to our servers, no paywalls.
/ create & design
Create & Design
Generate simple 3D printable models, custom parts, containers, trays, and OpenSCAD designs directly in your browser.
Screw-Top Container Generator
Generate a custom 3D printable screw-top container STL with a threaded body and matching lid.
Free QR Code to STL Generator
Turn a URL, Wi-Fi password, contact card, or QR image into a customizable 3D-printable STL. Preview and download free — no account required.
Free 3MF Splitter
Upload a 3MF, split painted color regions, object resources, build plate items, or cut the model with a plane.
OpenSCAD Playground
Write OpenSCAD code in the browser, preview the model, and download your .scad file.
/ viewers
View 3D Files
Preview STL, OBJ, 3MF, and other 3D model files online without installing extra software.
OpenSCAD Viewer
Open .scad files online, adjust parameters, and export STL locally in your browser.
3DM Viewer
Open Rhino .3dm files locally in your browser and inspect the model with orbit controls.
3MF Viewer
Open .3mf files locally in your browser and inspect printable models with orbit controls.
PLY File Viewer
Open PLY files locally and preview 3D scan or mesh data in your browser.
OBJ Viewer
Open OBJ files locally with .mtl and texture images when available.
Online STEP File Viewer
Open STEP and STP CAD files locally and preview engineering parts in your browser.
GLB File Viewer
Open GLB files locally and preview self-contained web 3D models in your browser.
GLTF Viewer
Open .gltf files locally with selected .bin and texture image files.
FBX Viewer
Open FBX files locally and preview the 3D model in your browser.
DAE File Viewer
Open DAE files locally and preview COLLADA model exports in your browser.
DXF File Viewer
Open DXF drawings locally and preview CAD files in your browser.
STL Viewer
Open ASCII or binary STL files locally in your browser, measure the model, and inspect the 3D shape.
Gcode Viewer
Upload a .gcode file and preview 3D printer toolpaths locally in your browser.
/ converters
Convert Your Files
Convert 3D printing files and design assets into useful formats for modeling, slicing, and printing.
Free 3MF to STL Converter
Convert 3MF files to STL format directly in your browser.
Free STL to 3MF Converter
Convert STL files to 3MF format directly in your browser.
Free STL to GLB Converter
Convert STL files to GLB format directly in your browser.
Free STL to GLTF Converter
Convert STL files to GLTF format directly in your browser.
Free OBJ to STL Converter
Convert OBJ files to STL format directly in your browser.
Free STL to OBJ Converter
Convert STL files to OBJ format directly in your browser.
Free OBJ to 3MF Converter
Convert OBJ files to 3MF format directly in your browser.
Free OBJ to PLY Converter
Convert OBJ files to PLY format directly in your browser.
Free OBJ to GLB Converter
Convert OBJ files to GLB format directly in your browser.
Free OBJ to GLTF Converter
Convert OBJ files to GLTF format directly in your browser.
Free 3MF to OBJ Converter
Convert 3MF files to OBJ format directly in your browser.
Free 3MF to GLB Converter
Convert 3MF files to GLB format directly in your browser.
Free 3MF to GLTF Converter
Convert 3MF files to GLTF format directly in your browser.
Free STEP to STL Converter
Convert STEP or STP files to STL format directly in your browser.
Free STEP to OBJ Converter
Convert STEP or STP files to OBJ format directly in your browser.
Free STEP to 3MF Converter
Convert STEP files to 3MF format directly in your browser.
Free STL to STEP Converter
Convert STL files to STEP format directly in your browser.
Free OBJ to STEP Converter
Convert OBJ files to STEP format directly in your browser.
Free PLY to STL Converter
Convert PLY files to STL format directly in your browser.
Free GLB to STL Converter
Convert GLB files to STL format directly in your browser.
Free GLTF to STL Converter
Convert GLTF files to STL format directly in your browser.
SVG to OpenSCAD Converter
Keep your OpenSCAD files self-contained by converting your SVGs into native OpenSCAD code
SVG to STL Converter
Upload an SVG, choose extrusion height, preview the 3D result, and download an STL.
DXF to OpenSCAD Converter
Convert clean 2D DXF outlines into self-contained OpenSCAD polygon code.
Free STL to Gcode Converter
Upload an STL and generate basic browser-made Gcode for simple single-material prints.
/ plan your print
Plan Your Print
Use 3D printing calculators to estimate filament usage, resize models, compare scale percentages, and plan print time before starting a print.
E-steps Calculator
Calculate corrected extruder E-steps or Klipper rotation distance from a measured filament test.
Filament Weight / Length Calculator
Convert filament weight to length, or length to weight, using diameter and material density.
Scale Percentage Calculator
Calculate the slicer scale percentage needed to resize a model to a target dimension.
Print Time Estimator
Create a rough print time estimate from model weight, layer height, infill, speed, and efficiency.
/ price & profit
Price & Profit
Calculate 3D print costs, material usage, selling prices, and marketplace earnings for your 3D printing projects.
3D Print Cost Calculator
Estimate print price from filament, electricity, machine time, labor, and markup.
MakerWorld Points Calculator
Estimate MakerWorld points from downloads, successful prints, profiles, boosts, and an observed model-reward adjustment.