Puzzles & Games
Hero Forge
Build a posed tabletop miniature in your browser and buy it as an STL to print at home
STL generators for 3D printing, no CAD needed Skip the CAD. Print the thing.
SkipTheCAD is a free, individually checked directory of 686 3D print generators in 15 categories: tools that turn a form, a photo or a line of text into a file you can slice tonight. No CAD, no modeling, no guesswork about which tool to use.
520 free 355 without an account All the numbers
Valentine's Day · Jan 25 to Feb 14
Valentine's Day 3D prints you can make without CAD
A photo, a date, two names or a voice message, turned into a print for your Valentine in a browser generator, no CAD needed.
- Vextrude Lithophane Maker
- OrbitStudio Sky
- Star Map Generator (MakerLab)
- Designer Bee Text Flip Generator
Mother's Day · Apr 20 to May 14
Mother's Day gifts you can 3D print without CAD
Photo lamps, star maps, name signs and cookie cutters for Mom, made in a browser from a photo, a date, a name or a child's drawing.
All 12 Mother's Day generatorsFather's Day · May 25 to Jun 21
Father's Day gifts to 3D print without CAD
Gridfinity tool holders, a photo lithophane, his favorite mountain as a relief map and more Father's Day gifts to print.
All 12 Father's Day generatorsBack to school · Aug 1 to Sep 10
Back-to-school 3D prints you can make without CAD
Bag tags, pencil name toppers, desk organizers and fraction sets for the new school year, made in a browser form instead of CAD.
- Name Keychain Generator [NO AMS]
- Customizable Parametric Pencil Slide-On Name
- Designer Bee 3D Keychain Designer
- Custom QR Code Luggage / Bag Tag
Halloween · Oct 1 to Oct 31
Halloween 3D prints without CAD
Lanterns, door signs, cookie cutters and name tags for treat bags, made in your browser without CAD.
All 11 Halloween generatorsChristmas · Nov 15 to Dec 25
Christmas ornament and gift generators
Print name ornaments, snowflakes, photo lithophanes, cookie cutters and gift boxes for Christmas, all from browser generators.
- Christmas Ornament Maker (MakerLab)
- Infinite Unique Snowflake Generator
- Customizable Christmas Tree Family Names
- Vextrude Lithophane Maker
What do you want to make?
15 categories, from photo gifts to replacement parts.
Lithophanes Photos that appear when light shines through. 
41 tools Storage Bins, baseplates and wall systems sized to your drawers. 
114 tools Boxes Custom-size boxes, lids and electronics cases. 
61 tools Signs & Text Type text, pick a font, print a sign. 
113 tools Keychains Name keychains, pet tags and bag tags. 
74 tools QR & NFC Codes Scannable QR, Wi-Fi and music code prints. 
34 tools Maps & Terrain Mountains, cities, the Moon and the stars. 
43 tools AI to 3D Describe it or upload a picture, get a model. 
61 tools Image to Relief Logos, SVGs and photos turned into raised prints. 
59 tools Cookie Cutters Custom cutters, stamps and clay tools. 
27 tools Vases & Lamps Twisted vases, planters and lamp shades. 
51 tools Mechanical Parts Gears, knobs, threads, springs and brackets. 
142 tools Puzzles & Games Jigsaws, mazes, dice and board game inserts. 
79 tools Customizers Hubs with hundreds of customizable models. 
57 tools Gifts Ornaments, soundwaves and personal keepsakes. 
178 tools All generators Every tool in one list, with search and filters. 686 tools
41 tools Storage Bins, baseplates and wall systems sized to your drawers. 114 tools Boxes Custom-size boxes, lids and electronics cases. 61 tools Signs & Text Type text, pick a font, print a sign. 113 tools Keychains Name keychains, pet tags and bag tags. 74 tools QR & NFC Codes Scannable QR, Wi-Fi and music code prints. 34 tools Maps & Terrain Mountains, cities, the Moon and the stars. 43 tools AI to 3D Describe it or upload a picture, get a model. 61 tools Image to Relief Logos, SVGs and photos turned into raised prints. 59 tools Cookie Cutters Custom cutters, stamps and clay tools. 27 tools Vases & Lamps Twisted vases, planters and lamp shades. 51 tools Mechanical Parts Gears, knobs, threads, springs and brackets. 142 tools Puzzles & Games Jigsaws, mazes, dice and board game inserts. 79 tools Customizers Hubs with hundreds of customizable models. 57 tools Gifts Ornaments, soundwaves and personal keepsakes. 178 tools All generators Every tool in one list, with search and filters. 686 tools What’s happening
What readers open, rate and save, and what we added or checked lately.
- Modelador 3D Modular Organizer Generator Added 11 November 2026
- Modelador 3D Trophy & Medal Generator Added 11 November 2026
- STL Splitter Image to STL Added 10 November 2026
- STL Splitter Text to STL Added 10 November 2026
- FaceTo3D Added 9 November 2026
- Infillery Keyring Builder Added 9 November 2026
- Modelador 3D Modular Organizer Generator Checked 11 November 2026
- Modelador 3D Trophy & Medal Generator Checked 11 November 2026
- STL Splitter Image to STL Checked 10 November 2026
- STL Splitter Text to STL Checked 10 November 2026
- FaceTo3D Checked 9 November 2026
- Infillery Keyring Builder Checked 9 November 2026
Made by readers
Latest reviews
OrbitStudio
Print any place on the Moon, Mars, Pluto and nine more worlds as a snap-together puzzle or ornament
OrbitStudio is a browser tool that turns real data from twelve worlds, the Moon, Mars, Mercury, Venus, Jupiter, Pluto, Charon, Ceres, Vesta, Mimas, Enceladus and Tethys, into printable terrain. Spin the globe or switch to the flat map, frame a crater, a landing site or a volcano, and the generator builds the surface at the size you choose. There are 454 named landmarks to start from, such as Tycho, Olympus Mons and Maxwell Montes.
We built OrbitStudio ourselves. It is listed with the same pros and cons as every other tool.
Popular with makers
The best-known tool in each of the busiest categories.
Image to Relief
HueForge
Desktop app that turns images into filament paintings using layered color swaps
Lithophanes
ItsLitho
Browser lithophane designer with many shapes, an image editor and a backlit preview
Storage
Perplexing Labs Gridfinity Generator
Browser generator for Gridfinity bins, baseplates, openGrid, Multiboard and HSW parts
Mechanical Parts
Screw Generator by Koolm
Metric and inch screws, nuts and washers with real thread specs, made on MakerWorld
Guides
Comparisons and how-tos, written for people who would rather print than model.
Start here · Beginner guide How to 3D Print Without CAD: Generators, Customizers, AI Lithophanes · Comparison Best Free Lithophane Generators (2026): Photo to STL Storage · Comparison Best Gridfinity Generators (2026): Free Bins & Baseplates AI to 3D · Comparison Best AI Image & Text to 3D Generators for Printing (2026) Questions people ask first
What is an STL generator?
An STL generator is a web or desktop tool that builds a printable 3D file from a form, a photo or a line of text, so you never model anything in CAD. You pick options such as size, text or shape, download the STL or 3MF, and slice it. SkipTheCAD lists 686 of them in 15 categories.
Is there a free STL generator without an account?
Yes, many. 520 of the 686 generators we list are free, and 355 let you download without an account. 3dp.rocks (lithophanes), Text2STL (3D text), QRCode2STL (QR codes), Terrain2STL (maps) and ImageToStl (images) all work in the browser with no sign-up.
Do I need CAD software to 3D print custom things?
No. For name keychains, signs, lithophanes, storage bins, QR codes, terrain maps and many simple parts, a generator is faster than learning CAD. You only need a modeling program such as Tinkercad for a shape no generator covers, like a replacement part with an unusual outline.
Can I sell prints made with a generator?
Sometimes. It depends on each tool's terms, and many free MakerWorld customizers use a non-commercial license. Every tool page on this site shows what the terms allow when we have read them, and our selling guide explains what to check.
Selling prints from generators · Glossary · How to 3D print without CAD
No printer yet?
We compared the printers that suit people who print from generators: from a $219 starter to machines that print four colors at once.
See the best printers for beginners