License, attribution & source
OpenPrintHQ is free software under the GNU Affero General Public License v3.0. Everything on this page is public — no account required — because the AGPL guarantees every user of this instance access to its license and complete source.
License
OpenPrintHQ — both the control-plane/web application and its print engine — is licensed under the GNU Affero General Public License, version 3 (or later). You may use, study, share, and modify it under those terms; if you run a modified version to serve users over a network, you must offer them its source.
Attribution & credits
OpenPrintHQ stands on the work of other open-source projects. The main ones:
- Bambuddy (© maziggy and contributors, AGPL-3.0) — our print engine is a derivative fork of it.
- OrcaSlicer (© SoftFever and contributors, AGPL-3.0) — our built-in slicer, itself derived from BambuStudio, PrusaSlicer and Slic3r.
- Inter (© Rasmus Andersson) and JetBrains Mono (© JetBrains) — the typefaces, under the SIL Open Font License.
- Core frameworks: Svelte/SvelteKit, Fastify and node-postgres (the app), and the FastAPI + React stack (the engine), each under its own license.
Every project's copyright and license is retained in our source, and the complete list of dependencies — with versions and licenses — is in the source archive.
Source code
In keeping with AGPL-3.0 §13, the complete corresponding source for the version of OpenPrintHQ running on this instance is available to every user, at no charge. It includes both the application and the print engine, with the exact commit identifiers recorded inside.
Download complete source (.zip)
The archive contains tracked source only — no credentials or deployment secrets.