Img2STL
Browser-based image-to-STL converter offering free height-map relief and AI true 3D mesh generation from photos.
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Img2STL is the right pick for hobbyists who need a fast, no-install way to turn a logo or badge into a printable relief STL at zero cost. The AI true 3D mode is credit-gated and the per-generation cost is not published transparently, which makes it hard to budget for regular use. Anyone needing production-quality meshes or predictable monthly pricing should look at a dedicated 3D AI platform instead.
What is Img2STL?
Img2STL is a browser-based tool that converts images into 3D STL files through two distinct methods. The free relief mode runs locally in the browser, turning high-contrast images into height-map emboss models with adjustable resolution, base thickness, and height scale, with no account or upload required. The AI true 3D mode accepts one to four photos and generates a full 3D mesh exported as STL or GLB, using a credit system.
The tool is built around a Studio workspace that also includes UV unwrapping, AI character rigging, component splitting for multi-part prints, PBR texture generation, and AI animation, all credit-based. It targets hobbyist 3D printing enthusiasts, product designers doing quick prototypes, and makers who want to go from a photo to a printable file without installing desktop software like Blender.
How we scored Img2STL
Capability scores 17 because the free relief mode is genuinely functional and the multi-photo AI input is a real technical differentiator, but the tool's AI mesh quality cannot be independently verified and the Studio's advanced features (rigging, animation) are thin compared to dedicated 3D platforms. Ease of use scores 20 because the two-path structure is clearly explained, the free mode requires zero friction, and the browser-only approach removes all installation barriers. Value scores 14 because the free relief tier is real value, but the AI credit system has no published pack prices or per-action costs, making it impossible for a buyer to assess value before committing, a specific and serious transparency failure. Delivery scores 11 because there are no third-party reviews, no published trust signals, and the pricing page actively withholds the information a buyer needs to make an informed purchase decision; the gap between the marketing framing and the actual published detail is wide enough to warrant skepticism.
Pros and cons
What we liked
- Free relief STL mode runs entirely in the browser with no account, no upload, and no cost, making it genuinely zero-friction for logos and badges.
- Multi-photo AI input (up to 4 views) reduces geometry artifacts on the back side of generated meshes, a real technical advantage over single-image competitors.
- Studio workspace bundles UV unwrapping, AI rigging, component splitting, PBR texturing, and animation into one browser environment, avoiding the need to round-trip files through Blender for basic post-processing.
Where it falls short
- Credit pack prices and per-generation credit costs are not published on the pricing page, making it impossible to budget AI 3D use before signing up, a specific transparency problem not shared by most credit-based competitors.
- The free relief mode produces a height-map emboss, not a true 3D mesh; users expecting a sculptural 3D model from a single free upload will be disappointed and must spend credits to get one.
- No desktop app, no API access, and no batch processing are mentioned anywhere on the site, which limits use for anyone processing more than a handful of models at a time.
Key features
Img2STL pricing
The browser relief mode is permanently free with no account required. AI true 3D generation runs on credits; new accounts receive 60 free credits on sign-up. Paid credit pack sizes and prices are not published on the pricing page in a way that search or the pre-fetched page content could confirm, so exact pack costs could not be verified.
| Plan | Price | Who it is for |
|---|---|---|
| Free Relief | Free | Browser-based height-map relief STL generation. No account required. No upload to servers. Unlimited use for logos, badges, coins, and lithophane-style emboss work. |
| AI Credits (Sign-up Bonus) | Free (60 credits on sign-up) | 60 credits granted on account creation. Used for AI true 3D generation, UV unwrapping, rigging, component splitting, PBR texturing, and animation in Studio. Specific credit costs per action and paid pack prices were not published on the pricing page at time of review. |
Pricing reflects what we saw at time of review (2026-09). Always confirm current pricing on the tool's own site.
Who should use Img2STL?
The free relief path is a genuine fit for anyone making custom coins, badges, keychains, or logo plaques for a 3D printer. No account, no wait, no cost. A maker who prints weekly and just needs a flat emboss of a club logo or a child's drawing will get real value here without touching the credit system.
The AI true 3D path suits hobbyists willing to experiment with photo-to-mesh conversion for pets, figurines, or product mockups, provided they understand the output is a starting mesh, not a production-ready file. Anyone who needs a reliable monthly budget for AI 3D generation, or who requires high-polygon production meshes, should look at Canva for general AI-assisted design work or consider a dedicated 3D platform. Canva's subscription pricing is fully transparent and its AI tools cover a broader design workflow if STL output is not the primary goal.
Skip it if: Production 3D artists or teams needing predictable, subscription-based AI mesh generation
Img2STL alternatives
Frequently asked questions
Does the free mode produce a real 3D model or just a flat emboss?+
The free browser mode produces a height-map relief, meaning the image is extruded as a flat emboss with variable depth. It is not a free-standing sculpture. For a full 3D mesh with real depth on all sides, you need the AI true 3D mode, which costs credits.
How many free credits do I get, and what can I do with them?+
New accounts receive 60 free credits on sign-up. Credits are consumed by AI true 3D generation, UV unwrapping, rigging, component splitting, PBR texturing, and animation. The site does not publish how many credits each action costs, so it is unclear how many full AI 3D generations 60 credits covers.
Do I need to install any software?+
No. Both the free relief mode and the AI Studio run entirely in the browser. The free relief mode does not even upload your image to a server.
What image formats does Img2STL accept?+
The site accepts JPG, PNG, and WEBP files up to 50 MB for AI 3D generation. The free relief mode works best with high-contrast images such as black logos on white backgrounds or sharp product silhouettes.
Can I use multiple photos for better 3D results?+
Yes. The AI true 3D mode accepts one to four photos. The site recommends shooting front, 45-degree, and side angles under similar lighting. Using two or more views reduces geometry problems on the back side of the generated mesh.
What export formats are available?+
The free relief mode exports STL. The AI true 3D mode exports both STL (for 3D printing slicers) and GLB (for preview and game engines) from the Studio workspace.
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