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Dev tools · alternatives · 2026

24 alternatives to STL Shelf

Organize, version, and search your 3D model library

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    The only bookshelf you'll ever need

    2016 · kickstarter.com · its alternatives →

  2. 2

    Find and easily print the best 3D things available

    2023 · play.google.com · its alternatives →

  3. 3

    It's been closed source for a long time while I worked on it on and off as a hobby research project, but yesterday the repo was made public for the first time under the MPL 2.0 license. A feature reel showing its capabilities can be found here: https://ktstephano.github.io/rendering/stratusgfx/feature_re... A technical breakdown of a single frame can be found here: https://ktstephano.github.io/rendering/stratusgfx/frame_anal... It's still in a very beta state (bugs and instability expected), but I felt like it was a good time to make it…

    2023 · github.com · its alternatives →

  4. 4

    Discover pre-built APIs, compose your own and build apps

    2017 · stdlib.com · its alternatives →

  5. 5

    Split STL & 3MF files to fit any 3D printer

    Aug 2026 · partfit3d.com · its alternatives →

  6. 6

    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 →

  7. 7

    2017 · michaelfogleman.com · its alternatives →

  8. 8

    Srcbook (”source-book”) is an open-source TypeScript notebook that runs locally, powered by Node.js. It shines for rapid prototyping, code exploration, and collaborating on ideas. It’s inspired by Python’s Jupyter and Elixir’s Livebook. Key features: - Full npm ecosystem access - AI-assisted coding (OpenAI, Anthropic, or local models), it can iterate on the cells for you with a code diff UX that you accept/reject for a given code cell, generate entire Srcbooks, fix compilation issues, etc… - Exports to valid markdown for easy sharing and version control Try it now: `npx srcbook start`…

    2024 · github.com · its alternatives →

  9. 9
    3dicons▲538

    Open source 3D icon library with over 1440+ icons

    2021 · 3dicons.co · its alternatives →

  10. 10
    Shelf▲93

    Save, organize and annotate learning resources.

    2021 · shelf.so · its alternatives →

  11. 11

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

    2025 · convertmesh.com · its alternatives →

  12. 12
    Depot▲78

    Organize all your 3D objects

    2021 · getdepot.app · its alternatives →

  13. 13

    Free to convert PNG to STL for 3d printing with 3DPEA

    2024 · 3dpea.com · its alternatives →

  14. 14

    Free, simple 3D design tool: models from pictures to STL

    Jun 2026 · github.com · its alternatives →

  15. 15
    shelf▲211

    Asset management infrastructure for everyone

    2023 · shelf.nu · its alternatives →

  16. 16

    Free, Open Source 3D Print Model Management

    Aug 2026 · printventory.com · its alternatives →

  17. 17

    Extend any 3D model in your browser in under 5 minutes

    May 2026 · stlextrudelab.com · its alternatives →

  18. 18

    Turn any image into a 3D printable STL file with AI

    Mar 2026 · imagetostl.io · its alternatives →

  19. 19

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

    2025 · apps.apple.com · its alternatives →

  20. 20VD
  21. 21
    stdlib▲92

    Standard Library of the Internet — Build/Share Microservices

    2016 · stdlib.com · its alternatives →

  22. 22SA
  23. 23SC
  24. 24

    Been making this rasterizer engine in C++ for the past few months, now also adding ray-tracing functionality to the system. Simply load a model or generate a mesh, add some lights, and render.

    2025 · github.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 →