Filotheke
Every spool on its own
Two rolls of orange PLA are two entries, each with its own weight, location and note. Filotheke books from the opened roll with the least left first.
Community project
Every spool in its place.
Filotheke is the filament manager for 3D printing that keeps everything on your phone: stock, usage and costs. No account, no cloud.
- Free
- Works fully offline
- No account, no cloud
Inventory
14Total spools
9.2Stock (kg)
€214Inventory value
AllIn stockLow
Tap a spool and book a print. Everything can be taken back.
0accounts or sign-ins
Offlinestock, history, labels and statistics
DE · ENinterface in two languages
Features
Everything that hangs on a spool
From the spool on the shelf to the finished print: Filotheke records what you have, what you use and what it costs.
Weigh instead of guessBeta
Put the spool on a Bluetooth scale. Filotheke subtracts the weight of the empty spool and books the difference. Wrong value? Every booking can be undone.
Arboleaf CK10G and CK10A
History with costs
Record every print: title, filament, grams, print time, photo and rating. Filotheke adds up material, power and wear costs. Repeating a print? One tap pre-fills the booking.
Connect printersBeta
Bambu Lab printers on your own network show status and AMS slots, with no Bambu cloud involved. With Home Assistant, Filotheke books prints automatically once your weight sensor reports a value. Before a print, the fill check tells you whether the spool is enough.
Labels, NFC and barcodesBeta
Print labels with a QR code, one by one or as an A4 sheet. Write NFC tags and open a spool by holding your phone to it. A scanned barcode fills in brand and material from a catalogue that ships inside the app. Or photograph the label: the text is recognised on your device.
Is there enough filament?
Load the file from your slicer (3MF or G-code). Filotheke shows the amount and cost, and tells you whether the chosen spool is enough, what is missing and when you will need to swap.
Drying and maintenance
Drying intervals per material, overdue spools at a glance. Plus a maintenance log for every printer, with intervals in hours, days or prints.
Numbers and shopping
Usage per month, most-used filaments and how long your stock lasts. What runs low goes onto the shopping list, and a home-screen widget shows what is nearly empty.
Find a colour
Looking for a specific colour? Pick it, and Filotheke shows the spools in your stock that come closest. Colours are compared with CIEDE2000, a measure modelled on the human eye.
Features
What Filotheke looks like
Dark, calm, with glass surfaces: the interface is made for the workshop, with big numbers and clear colours.
Shown with sample data.
How a day with Filotheke goes
Add a spool
Scan the barcode or photograph the label, enter count and weight. For opened rolls you give what is left.
Print and book
By hand, with the scale, or automatically through Home Assistant. Every booking shows up in the history and can be taken back.
Reorder in time
When a spool runs low, the app tells you. The shopping list remembers what is missing.
Privacy
Your data stays with you.
Filotheke needs no account and no cloud. Everything lives in a database on your device.
Credentials protected separately
Printer access codes and tokens sit in Android's keystore, never in the database and never in backups.
Backups under your control
ZIP backups, optionally encrypted with a password (Argon2id and AES-256-GCM). The last five are kept.
App lock
With fingerprint or face. While the lock is active, Android prevents screenshots of the app.
Sync without a server
Two devices sync directly over Wi-Fi, after a one-time pairing by QR code, and encrypted.
Online only if you want it
Home Assistant and Spoolman are only contacted if you set them up yourself.
Photos without location
When saving, Filotheke strips the EXIF data from your photos.
Connections
Fits what you already use
Filotheke works fine without any connection. If you want to connect a printer, you have options.
- Bambu Lab, LAN
- Status, progress and AMS on your own network. After a print, Filotheke suggests the usage from the 3MF file and you confirm. Beta
- Home Assistant
- Connect a status and a weight sensor. With a weight sensor, Filotheke books prints automatically.
- Spoolman
- Sync stock per spool with your Spoolman server. When there is a conflict, you decide.
- NFC and QR
- Your own labels and NFC tags, including the OpenSpool format.
- Slicer files
- Reads 3MF and G-code for amounts, costs and whether the spool is enough.
- Demo mode
- Try everything without connecting a printer.
Filotheke is an independent project and is not affiliated with Bambu Lab, Home Assistant or Spoolman. All trademarks belong to their owners.
Community project
Built by makers, for makers.
Filotheke is meant as a community project. It grows with the people who use up filament every week. Ideas, bug reports and new scales are welcome.
Ideas and bugs
Tell us what is missing or feels wrong. What gets built next should come from everyday printing.
Share scale profiles
Scale not recognised? The app packs an anonymous archive, without addresses or device names, and you decide where it goes. No account, no server.
Empty-spool weights
The weight of an empty spool, with maker and type, can be shared the same way, so nobody has to weigh it again.
There is no meeting place yet. As soon as there is one, you will find it here.
Frequently asked questions
Do I need an account?
No. Filotheke runs without sign-in and without a server. Your data stays on the device.
Does Filotheke cost anything?
No, Filotheke is free. There are no ads and no subscription. If the app helps you, you can buy me a coffee if you like, but you never have to.
Does the app work without internet?
Yes. Stock, history, labels and statistics all work offline. You only need a network for Home Assistant, Spoolman or a printer on your Wi-Fi.
Which devices does Filotheke run on?
Filotheke is built for Android. There is no iOS version at the moment.
Which printers are supported?
Bambu Lab printers in LAN mode and any printer that Home Assistant knows with a status and a weight sensor. Without a connection you manage stock by hand, which works with any printer.
Do I need a scale?
No, it is optional. Currently Filotheke recognises the Bluetooth scales Arboleaf CK10G and CK10A. Without a scale you enter the weight by hand.
Can I import my existing list?
Yes. Filotheke reads CSV and JSON files and shows a preview before anything is saved.
How do I back up my data?
With a ZIP backup in the settings, with a password if you like. You can also sync two devices directly over Wi-Fi.
When will Filotheke be released?
There is no date yet. Once the app is available, the download will appear on this page.
Filotheke is coming to Android.
Version 1.1.0 is in the works. As soon as the app is available, you will find the download here.
Coming soon
