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PNGtoSTL alternatives

PNGtoSTL converts 2D images into STL files, including heightmap and lithophane modes, and converts 3MF, OBJ, and STEP files, all in the browser on a freemium model. Most of these alternatives generate 3D models from text or photos rather than producing heightmap relief, so the right choice depends on whether you need image-to-relief conversion, format conversion, print preparation, API access, or self-hosting. Compare free tiers and export formats against your printing or game pipeline.

Comparing with

PNGtoSTL

png to stl, image to stl, Image to 3D, 3MF to STL, OBJ to STL

FreeWeb
View PNGtoSTL

Quick picks

All 11 alternatives

Ranked by how well each one does what PNGtoSTL does.

  1. 1
    Trellis 2

    AI 3D reconstruction: turn photos into 3D models online

    Pick it if you need a textured model generated from a single image, with STL export alongside GLB, OBJ, PLY and USDZ.

    • Free plan
    • Web
    Covers most of itFreeSimilar price to PNGtoSTLView Trellis 2
  2. 2
    AI STL Generator

    Turn Text & Images into 3D Printable STL Files

    Pick it if you need watertight, print-ready STL output from text or images, with automatic printability checks and mesh repair.

    • Free plan
    • Web
    Covers most of itFreemiumSimilar price to PNGtoSTLView AI STL Generator
  3. 3
    PrintReady3D

    AI 3D print generator: text or image to STL

    Pick it if you want to split large models into printable parts with connectors, or prepare multi-color prints, with STL or 3MF export.

    • Free plan
    • Web
    Covers most of itFreemiumSimilar price to PNGtoSTLView PrintReady3D
  4. 4
    Fomrix

    Create AI 3D assets from images and text

    Pick it if you want to convert GLB to STL, repair STL meshes and view files in the browser, alongside generating models from prompts.

    • Free plan
    • Web
    Covers most of itFreemiumSimilar price to PNGtoSTLView Fomrix
  5. 5
    ChatAvatar

    Transform Text and Images into 3D Avatars

    Claim this listing

    Pick it if you need programmatic API access to generate 3D models and export them to STL, FBX, GLB or USDZ.

    • Free plan
    • API
    • Web
    Covers most of itFreeSimilar price to PNGtoSTL
    View ChatAvatar
  6. 6
    Alpha3D

    Transform 2D images into high-quality 3D assets

    Claim this listing

    Pick it if you need format conversion between GLB, FBX, OBJ and STL, saved node-based workflows, or a Blender add-on.

    • Free plan
    • API
    • Web
    Covers most of itFreemiumSimilar price to PNGtoSTL
    View Alpha3D
  7. 7
    3D AI Studio

    Create high-quality 3D models with AI technology

    Claim this listing

    Pick it if you want AI texturing and retopology on existing models, with STL export and REST API access.

    • Free plan
    • API
    • Web
    Covers most of itPaidSimilar price to PNGtoSTL
    View 3D AI Studio
  8. 8
    3D Converter

    Perfectly convert between major 3D formats from 3D model or 2D image

    Pick it if your main need is a free browser converter across STL, OBJ, FBX, 3MF and other formats, for files up to 100MB.

    • Free plan
    • Web
    Covers some of itFreeSimilar price to PNGtoSTLView 3D Converter
  9. 9
    Image3D

    Generate 3D models from images or text in your browser

    Pick it if you want to generate a model from an image, check STL output in a browser viewer, and export GLB, OBJ or PLY as well.

    • Free plan
    • API
    • Web
    Covers some of itFreemiumSimilar price to PNGtoSTLView Image3D
  10. 10
    Pixal3D

    Pixel-Aligned High-Fidelity Image to 3D Generation

    Pick it if you want an open-source, self-hostable image-to-3D tool with PBR textures and GLB export, at a lower price.

    • Free plan
    • Open source
    • Web
    Covers some of itOpen sourceCosts less than PNGtoSTLView Pixal3D
  11. 11
    ChatAvatar

    Transform Text into Hyper-Realistic 3D Avatars

    Claim this listing

    Pick it if you need low-poly optimization and texture generation for game props, with plugins for 3D software and API access.

    • Free plan
    • API
    • Web
    Covers some of itFreeSimilar price to PNGtoSTL
    View ChatAvatar

PNGtoSTL and its top 5, side by side

What we compared
PNGtoSTLThis product
Trellis 2#1
AI STL Generator#2
PrintReady3D#3
Fomrix#4
ChatAvatar
#5
What it doespng to stl, image to stl, Image to 3D, 3MF to STL, OBJ to STLAI 3D reconstruction: turn photos into 3D models onlineTurn Text & Images into 3D Printable STL FilesAI 3D print generator: text or image to STLCreate AI 3D assets from images and textTransform Text and Images into 3D Avatars
Fit for PNGtoSTL users—Covers mostCovers mostCovers mostCovers mostCovers most
PricingFreeFreeFreemiumFreemiumFreemiumFree
Free planYesYesYesYesYesYes
APINoNoNoNoNoYes
Open sourceNoNoNoNoNoNo
PlatformsWebWebWebWebWebWeb, API

Questions about PNGtoSTL alternatives

What are the best alternatives to PNGtoSTL?

On AINave, the closest matches are Trellis 2, AI STL Generator and PrintReady3D.

Is there a free alternative to PNGtoSTL?

Yes. 11 alternatives have a free plan, including Trellis 2, AI STL Generator and PrintReady3D.

Which PNGtoSTL alternatives have an API?

5 alternatives have an API, including ChatAvatar, Alpha3D and 3D AI Studio.

Is there an open-source alternative to PNGtoSTL?

Yes. Pixal3D is open source.

Built something like PNGtoSTL?

List it on AINave and it can show up here.

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