Spoolmark (Spool Scanner)

Know what’s on every filament spool before you print.

Spool Scanner reads supported NFC filament tags and turns encoded data into a clear, practical profile. Scan compatible Bambu Lab RFID tags, Spool Scanner NFC labels, and OpenPrintTag records. Save spools to a private local inventory, browse a multi-brand catalog, and compare print specifications side by side.

Scan and identify filament
• Material type, subtype, brand, and product
• Color name and exact RGB/hex value
• Full and remaining weight, nominal length, and diameter
• Nozzle, bed, and drying settings
• Minimum nozzle diameter and spool dimensions
• Manufacturing date and tag or tray identifiers
• Catalog matches and curated replacement suggestions when available

Manage your spool inventory
Save a scanned spool or add one manually. Organize up to 50 non-archived spools with lifecycle state, remaining material, location, and notes. Search by material, color, brand, or location; filter unopened, in-use, empty, archived, or all spools. Repeat scans can reconnect to the same physical spool record.

Explore and compare filaments
Browse specifications for filament from multiple manufacturers. Compare the current spool with up to three catalog filaments to quickly spot matching, similar, and different parameters—including material, temperatures, weight, speed, density, heat resistance, and strength data when available.

Create NFC tags for third-party filament
Create reusable Spool Scanner labels on compatible NTAG215 or NTAG216 NDEF stickers. Enter spool details, choose the optional fields to include, check the encoded size, then write. Every write is read back and verified before success is reported.

OpenPrintTag support
Read compatible OpenPrintTag NFC-V filament records, create a filament record on a supported blank NXP ICODE SLIX2 tag, and update remaining or usage weight. OpenPrintTag support is limited to compatible FFF/filament records and hardware.

Original Bambu Lab spool tags are read only and are never modified. The app does not create or imitate Bambu Lab RFID tags.

Local scan history
Review the 20 most recent compatible scans and tag writes. History is stored locally, grouped by spool or tag identity, and can be cleared at any time.

Private by design
• No account required
• No ads or subscriptions
• Inventory and history stay on your device
• Core scanning and tag features do not require a cloud service

Compatibility
• Android phone with NFC required for physical reads and writes
• Reading Bambu Lab RFID tags requires MIFARE Classic support
• App-created labels require compatible NTAG215/NTAG216 NDEF stickers
• OpenPrintTag creation requires a compatible blank NXP ICODE SLIX2 NFC-V tag
• NFC tag data may be readable by nearby compatible devices; do not store sensitive information

Spool Scanner is independent and is not affiliated with, endorsed by, or sponsored by Bambu Lab. Bambu Lab is a trademark of its respective owner.