Parametric Parts Tray Generator
Create a printable open-top tray with adjustable dimensions, wall thickness, and an optional divider.
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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.
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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.
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Free Bas Relief Generator
Turn a photo, logo, or artwork into a printable 3D relief. Preview the model and download STL, 3MF, OBJ, STEP, heightmap PNG, or contour SVG.
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Free Filament Painter
Turn a photo into a layered filament painting. Preview the colors, plan the filament swaps and download a 3MF for Bambu Studio or PrusaSlicer.
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Free 3D Printable Map Maker
Turn real terrain and OpenStreetMap buildings, roads and water into a joined STL or 3MF model.
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Free 3D Topographic Map Maker
Create stepped terrain maps from real elevation, with color palettes and printer-sized tiles. Download STL or colored 3MF.
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Free Minecraft Map to 3D Print Converter
Turn part of a Minecraft Java or Bedrock world into a printable STL or colored 3MF. Big builds can print as tiles.
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Free 3D Model Splitter
Split STL and 3MF models with cut planes, use existing colors, or create regions with edge fill and painting tools.
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Free 3D Model Compressor
Shrink STL, 3MF, GLB and other 3D models to fit an upload limit. Cut triangles, compare the result, and download a smaller STL.
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Free STL Repair Tool
Fix holes, non-manifold edges and flipped faces in an STL file. Check what's wrong, repair it in your browser and download a watertight STL.
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OpenSCAD Playground
Write OpenSCAD code in the browser, preview the model, and download your .scad file.
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Free OpenSCAD Exercises
Practice OpenSCAD with eight 3D exercises, run your code, and check the rendered shape in your browser.
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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.
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3DM Viewer
Open Rhino .3dm files locally in your browser and inspect the model with orbit controls.
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3MF Viewer
Open .3mf files locally in your browser and inspect printable models with orbit controls.
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Online STEP File Viewer
Open STEP and STP CAD files locally and preview engineering parts in your browser.
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GLB and glTF Viewer
Open GLB and glTF files locally and preview web 3D models in your browser.
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STL Viewer
Open ASCII or binary STL files locally in your browser, measure the model, and inspect the 3D shape.
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/ converters
Convert Your Files
Convert 3D printing files and design assets into useful formats for modeling, slicing, and printing.
Free STL to GLB & glTF Converter
Convert STL files to GLB or glTF format directly in your browser.
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Free OBJ to GLB & glTF Converter
Convert OBJ files to GLB or glTF format directly in your browser.
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Free 3MF to GLB & glTF Converter
Convert 3MF files to GLB or glTF format directly in your browser.
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Free STEP to STL Converter
Convert STEP or STP files to STL format directly in your browser.
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Free STEP to OBJ Converter
Convert STEP or STP files to OBJ format directly in your browser.
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SVG to OpenSCAD Converter
Keep your OpenSCAD files self-contained by converting your SVGs into native OpenSCAD code
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SVG to STL Converter
Upload an SVG, choose extrusion height, preview the 3D result, and download an STL.
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Free STL to Gcode Converter
Turn an STL into ready-to-print G-code for Marlin and Klipper printers, right in your browser.
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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.
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Filament Weight / Length Calculator
Convert filament weight to length, or length to weight, using diameter and material density.
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Scale Percentage Calculator
Calculate the slicer scale percentage needed to resize a model to a target dimension.
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Print Time Estimator
Create a rough print time estimate from model weight, layer height, infill, speed, and efficiency.
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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.
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MakerWorld Points Calculator
Estimate MakerWorld points from downloads, successful prints, profiles, boosts, and an observed model-reward adjustment.
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