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About Prompt2STL
Prompt2STL is a browser-based text-to-3D model generator that turns simple functional descriptions into watertight STL files ready for 3D slicing. All processing happens locally in your browser — no account, no uploads, and real-time mesh validation ensures your models are printable before you export. Free to use, no sign-up required.
Updated 9/22/2026
Key Features
- Browser-local generation — prompt, mesh checks, preview, and STL export all run in your browser with no server upload
- No account required — start creating and downloading STL files immediately without signing up
- Runtime validation — real-time checks for closed mesh, wall thickness, bed fit, and support hints before export
- Z-up STL output — generates standard slicer-ready STL files in millimeters
- Supported functional forms — planters, trays, rings, tokens, cylinders, spacers, coins, discs, and pegs
- Print readiness verification — automatic checks for watertightness, minimum wall thickness, and build volume fit
- Honest MVP — focused on functional forms first; arbitrary objects require more advanced repair pipelines
- Millimeter-based dimensions — all inputs and outputs use millimeters for real-world accuracy
- Layer height & infill settings — configure print parameters for time and filament estimates
- Privacy-first design — your prompt and model never leave your browser; refresh clears the current session
Pricing Structure
- Free — $0 — Full access to all features, no account or sign-up required.
Why People Use It
People use Prompt2STL to quickly turn text descriptions like '90mm wide planter' or '50mm diameter token' into printable STL files without leaving their browser. The tool validates mesh integrity, wall thickness, and build volume before export, giving you confidence that the generated model will slice and print correctly. No account needed — just describe your object, verify the checks, and download your Z-up STL ready for any slicer.
See Prompt2STL in Action
