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Dev tools · alternatives · 2026

24 alternatives to Unionfab Meshspace

Free online 3D model viewer, support step/stp/stl etc..

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Unionfab Meshspace launched in 2022; newer entries below may have overtaken it.

  1. 1
    Mesh▲608

    Design 3D illustrations & icons in a quick and engaging way

    2022 · morflax.com · its alternatives →

  2. 2

    I use a ton of 3D Files as I love 3D printing in my spare time and I usually exchange them over Gmail and store them in Google Drive etc.. Google does not have a 3D Preview of files so I've built a small Google Workspace Addon that opens the file into a clean "Google like" web app that supports most files. Other solutions existed but they were full of ads and looking absolutely terrible. It got a bit of traction (around 400 users) on the store so thought I would share it here! Would love to have feedback! Each file is treated purely in the browser for maximum privacy

    Jan 2026 · 3dviewer.co · its alternatives →

  3. 3
    Xspiral▲363

    Create 3D designs using 2D methods, Work with AI in 3D space

    2024 · its alternatives →

  4. 4

    Render 3D models (OBJ, glTF, GLB, STL, .vox) as ASCII art — in the browser, in React or Vue, or straight in your terminal. A three.js-style API with no WebGL and no canvas: just text in a single <pre>.

    Jun 2026 · glyphcss.com · its alternatives →

  5. 5

    Create a free virtual HQ in a few seconds.

    2021 · spot.xyz · its alternatives →

  6. 6

    Blender-style 3D editing in your browser

    May 2026 · 3d-editor.com · its alternatives →

  7. 7

    Free 3D illustrations in 4K resolution

    2021 · tothethirddimension.com · its alternatives →

  8. 8

    Extremely powerful, completely free 3D CAD modeling

    Mar 2026 · wiki.freecad.org · its alternatives →

  9. 9

    Hey HN! I'm Zach from Adam (https:&#x2F;&#x2F;adam.new&#x2F;). We’re building an AI co-pilot for mechanical CAD software. As part of our broader research, we built a browser-based Text-to-CAD app (https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44182206) and are now open sourcing it. This is a React SPA with a Supabase backend. What it does: * Generates parametric 3D models from natural language descriptions, with support for both text prompts and image references * Outputs OpenSCAD code with automatically extracted parameters that surface as interactive sliders for instant dimension…

    2025 · github.com · its alternatives →

  10. 10

    Goxel: Free and Open Source 3D Voxel Editor . Contribute to guillaumechereau/goxel development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  11. 11

    Old version. Visualise data and edit JavaScript code using a spreadsheet interface. - chrispsn/mesh

    2017 · github.com · its alternatives →

  12. 12
    ViewMe▲228

    3D Viewer Desktop App

    2025 · github.com · its alternatives →

  13. 13
    Sketchfab▲154

    Publish and embed interactive 3D files online

    2014 · sketchfab.com · its alternatives →

  14. 14

    One platform, all-in-one power: view,convert,compress,share

    2025 · its alternatives →

  15. 15

    Free to view. Easy to convert. STL, OBJ, 3MF, and more.

    2025 · apps.apple.com · its alternatives →

  16. 16

    Publish and share huge 3D datasets online

    2018 · sketchfab.com · its alternatives →

  17. 17

    Free online voxel creation platform

    2021 · 88jokerslot.co · its alternatives →

  18. 18

    A search bar for the 3D world

    2018 · sketchfab.com · its alternatives →

  19. 19

    Just build a local tool for designing gears that kinda looks and works nice

    Jan 2026 · gears.dmtrkovalenko.dev · its alternatives →

  20. 20

    Free 3D file converter - 3MF, STL, OBJ, PLY, GLTF online

    2025 · convertmesh.com · its alternatives →

  21. 21

    Quickly convert game 3D model files. Start free.

    2025 · modelformatconvert.com · its alternatives →

  22. 2233
  23. 23

    Free viewer for STL, GLB, STEP — replaces Windows 3D Viewer

    Aug 2026 · open3d.app · its alternatives →

  24. 24

    No paywalls. More tools. Built for 3D creators.

    2025 · ilove3dm.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →