Free, open-source and community-maintained filament data

The open filament database for 3D printing

One open, MIT-licensed source for the data that describes 3D printing filament - brand, material, color, size, store and the slicing settings that link a spool to its profile. It currently holds 138 brands, 656 materials, 1,978 filaments and 14,219 color variants, and it keeps growing as the community contributes. It powers SimplyPrint presets and any third-party tool that wants to use it, and anyone can contribute with no coding required.

Kom gratis i gang Mere info & how-to

What it is, and why it exists

The Open Filament Database is an open-source, community-maintained catalog of 3D printing filament. It is hosted by the Open Filament Collective, with SimplyPrint acting as the operational steward - it is its own project with multiple partners and many contributors, not something any one company owns. The data is MIT-licensed, so it is free to use, redistribute and embed, including commercially.

The filament data was scattered everywhere

Filament data used to live in pieces. Slicers shipped a slice of the profiles, color-swatch sites tracked another part, and manufacturer spec sheets were scattered across hundreds of product pages. No single open source put it all together - the brand, the material, the color and hex, the spool size, the store you buy it from, and the slicing settings that actually link a spool to its print profile. The Open Filament Database unifies that fragmented picture into one place that anyone can read, reuse and build on.

The database in numbers

Live counts, regenerated automatically every day as contributions land.

138 brands

Filament manufacturers and resellers catalogued across the dataset.

1,978 filaments

Distinct brand and material lines, spanning 656 materials.

14,219 variants

Individual colors with name, hex, density and print temperatures.

21,659 sizes

Specific spool weights and diameters, linked to the stores that sell them.

What's actually in the database

The data is structured the way you actually shop for and use filament. Each brand has its name, logo and website. Each material covers a type like PLA, PETG, ABS or TPU. Each filament is a brand-and-material line, and each variant adds a specific color name and hex, plus density, diameter and print temperatures. Every size records a spool weight or length, and each links out to the stores and purchase links where you can actually buy it. That full chain - brand to material to color to size to store - is what lets a single spool map cleanly onto its slicing profile.

Contribute in minutes, no code required

You do not need to know how to code to improve the database. Sign in to the web editor with GitHub or SimplyPrint, then add or edit brands, filaments, colors, sizes, stores and purchase links right in your browser. Your changes are validated and reviewed by the maintainers, and once accepted they go live in the next daily rebuild - appearing as presets inside SimplyPrint and any third-party software that uses the database. Advanced users can submit GitHub pull requests instead.

Open the web editor

Open, MIT-licensed, and stewarded not owned

This is the most comprehensive open-source filament database around, with the most brands in a fully open, MIT-licensed dataset. It is hosted by the Open Filament Collective and stewarded operationally by SimplyPrint, but it is a shared project - multiple partners and a large community of contributors keep it accurate. The MIT license means you are free to use the data, redistribute it and embed it in your own products, including commercially, without asking permission.

It powers SimplyPrint - and a lot more

Real integrations, not just a static list

Inside SimplyPrint, the database backs the filament presets: when you add a spool you search it for the brand, material and color, and the link between that spool and its slicing profile comes straight from this data. It is also consumed by third-party tools, and it is aligned with Prusa's OpenPrintTag ecosystem - so the same open data follows your filament across the software you already use.

See the SimplyPrint filament manager
Feature image

Built for developers too

Because the data is open and MIT-licensed, you can pull it straight into your own app, slicer, store or spool tracker. There is a documented JSON API and full docs covering the data model and how to contribute. No keys, no gatekeeping - just open filament data.

Read the API docs

Frequently asked questions

Yes. It is completely free and MIT-licensed, which means you can use, redistribute and embed the data, including in commercial products, without paying or asking permission.
Yes, and you do not need to code to do it. Sign in to the web editor at openfilamentdatabase.org with GitHub or SimplyPrint, add your brand, filaments, colors, sizes, stores and purchase links, and the maintainers will review them. Accepted changes go live in the next daily rebuild.
Yes. SimplyPrint uses the Open Filament Database to power its filament presets - the brand, material and color data, and the link between a spool and its slicing profile - and acts as the operational steward of the project.
Yes. There is a documented, open JSON API, and the MIT license lets you build it into your own software, slicer, store or spool tracker. See the documentation to get started.
It is hosted by the Open Filament Collective and stewarded operationally by SimplyPrint, with multiple partners and a large community of contributors. It is a shared open project, not owned by any single company.

Help build the open filament database

If a filament you use is missing or out of date, you can fix it in a few minutes. Open the web editor, make your change, and it lands for everyone - inside SimplyPrint and every other tool built on the database - in the next daily rebuild.

Start contributing

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