---
title: "FreeCAD files finally get thumbnails in a self-hosted 3D library"
locale: "en"
url: "https://irz.fr/en/articles/manyfold-freecad-en"
markdown_url: "https://irz.fr/en/articles/manyfold-freecad-en.md"
category: "tech"
tags: ["open source", "self-hosting", "3d printing", "cad", "tools"]
published_at: "2026-08-14T08:30:00.000Z"
author: "Noé Lambert"
translation: "https://irz.fr/fr/articles/manyfold-freecad-fr.md"
---

# FreeCAD files finally get thumbnails in a self-hosted 3D library

The open-source Manyfold app can now render FreeCAD project thumbnails. Another small brick for makers who want to keep their 3D library under their own control.

Manyfold is an open-source, self-hosted web app for organizing and sharing 3D models, mostly print files. On 6 August 2026, FreeCAD News announced a small addition: a FreeCAD file (.FCStd) dropped onto your instance now shows its project thumbnail in the preview.[1](https://blog.freecad.org/2026/08/06/manyfold-now-with-freecad-thumbnails/)

The detail looks tiny, but it removes a real point of friction. An FCStd file is a container. Without a render, you do not know what it holds until you open it. Seeing the thumbnail first is the difference between a library you browse and a folder you dread.

The app ships as a Docker container, with instructions for NixOS, Kubernetes, Proxmox and Home Assistant add-ons.[1](https://blog.freecad.org/2026/08/06/manyfold-now-with-freecad-thumbnails/) Under the hood it is Ruby on Rails, with THREE.js for in-browser 3D rendering and PostgreSQL in production.[2](https://github.com/manyfold3d/manyfold) A public server runs at 3Dprint.social if you want to look around, and a demo lives at try.manyfold.app.[2](https://github.com/manyfold3d/manyfold)[3](https://manyfold.app/)

Funding comes from NGI0 Entrust, an NLnet fund backed by the European Commission's Next Generation Internet programme.[2](https://github.com/manyfold3d/manyfold) This is not a service that can quietly disappear behind a subscription.

Concretely, a maker can keep models at home, tag them, attach a clear licence and find them visually again. Nothing dramatic — exactly the kind of tool that makes self-hosting less heroic.

## References

1. [FreeCAD News, Manyfold: Now with FreeCAD Thumbnails](https://blog.freecad.org/2026/08/06/manyfold-now-with-freecad-thumbnails/)
2. [Manyfold, GitHub repository](https://github.com/manyfold3d/manyfold)
3. [manyfold.app](https://manyfold.app/)