🎉 Browser creation and the complete preview are free; printable Browser exports and fully available Cloud processing use one shared prepaid-credit balance.

📝 Step 1: Register/log in • Step 2: Add OpenTopography API key • Step 3: Choose Browser or Cloud mode
Read Usage guide to understand how it works

Transform Terrain Into 3D Reality

Generate professional-grade 3D printable terrain models from real-world elevation data. Upload a GPX, KML, or GeoJSON route, see it on the map, and reproduce it as a raised path alongside custom pins. Browser creation and preview are free; one shared-credit pass unlocks every file for an exact configuration.

Launch App Learn More

13+

DEM Sources

30m

Resolution

100%

Web-Based

Powerful Features

Everything you need to turn landscapes, routes, and meaningful places into printable terrain.

🗺️

Interactive Mapping

Select locations worldwide with an intuitive Leaflet.js map workflow.

🎯

Zoom to Feature

Center the map instantly on selected bounding boxes, pins, or complete GPS tracks from workspace actions.

🌍

13+ DEM Sources

Choose from SRTM, NASADEM, Copernicus, ALOS, GEBCO, and more.

📐

Model Controls

Tune dimensions, vertical exaggeration, smoothing, and resolution reduction.

〰️

GPS Tracks on 3D Terrain

Upload GPX, KML, or GeoJSON files for trekking, running, cycling, cruising, and similar activities; visualize them on the map and print the selected route as a raised terrain-following path.

Explore the GPS workflow →

📋

Boxes, Pins & Tracks Workspace

Manage bounding boxes, persistent pins, and GPS tracks from organized lists with rename, styling, visibility, zoom, association, per-box inclusion, and delete controls.

🏔️

Topographic Band Modes

Use Adaptive, Equal Step, or Coastal Preserve banding for segmented topographic models.

🖥️

Browser Processing

Generate and inspect locally for free, then unlock every printable file for an exact project with one Export Pass.

☁️

Cloud Processing

Submit large jobs to server-side compute with prepaid credit packs and per-box required credits preview.

🧭

Cloud Jobs Dashboard

Track submitted, processing, completed, and failed jobs with one-click STL download.

💾

Export Workflows

Export terrain-only or terrain + tracks + pins STL, plus watertight multi-object 3MF for topographic color workflows.

🧾

Printing Guide

Generate step-by-step manual filament-change instructions for single-material printers.

⚡

Background Processing

Web Worker generation keeps the interface responsive during heavy model creation.

💨

Live Progress + Cancel

Track generation stages in real time and cancel safely at any moment.

📲

Responsive PWA Experience

Works across desktop/tablet/mobile and supports installable app-style access.

How It Works

Create your first 3D terrain model in just 4 simple steps

📝

Register & Get API Key

Create a free account and obtain your free OpenTopography API key for accessing elevation data.

🗺️

Load a Route & Select Your Area

Optionally upload a GPX, KML, or GeoJSON track, inspect it on the map, then manually draw the bounding box that frames your terrain.

⚙️

Customize Settings

Adjust dimensions, vertical exaggeration, composition mode, DEM source, and optional topographic band settings.

🎉

Generate & Download

Preview the terrain, then export a merged printable STL or watertight multi-part 3MF with selected routes and pins.

View Detailed Guide

Additional Service

Professional 3D printing cost estimation for any model

🖨️

Print-Calculator

Free tool available to everyone - no registration required

Get instant cost estimates and personalized quotes for 3D printing any model - whether generated by our 3D Topo app or from any other source (figurines, prototypes, mechanical parts, etc.).

✓ Free to use - Works with any STL, OBJ or 3DS file

✓ Instant estimates - Get approximate costs immediately

✓ Custom quotes - Contact directly for personalized pricing

Access Print-Calculator (Free)

About the Creator

Meet the developer behind 3D Topo Generator

Created by Carmelo Sammarco (Sicilian4Ever), this tool represents the intersection of geospatial science and modern web technology. Built with passion for cartography, 3D printing, and open-source software.

The application leverages cutting-edge web technologies including Three.js for 3D rendering, Leaflet for interactive mapping, and modern DEM processing algorithms to deliver professional-grade results directly in your browser.

Carmelo Sammarco

Sicilian4Ever