Spoolghetti: Filament Price per kg

Check the math. True price per kg on Amazon.com filament searches, best deals sorted to the top, junk filtered out.

Check the math. Filament listings are a mess. A 4-pack here, a 1.1 kg spool there, a "bundle" with no weight in the title, and 250 g sample packs mixed in with real spools. Spoolghetti untangles it: it reads every listing on an Amazon.com filament search and shows you what you're actually paying per kilogram. WHAT IT DOES • Shows price per kg on every listing, plus price per spool when spools aren't 1 kg • Understands packs, bundles, "4 x 1.1kg", "250g x 8", pounds, and listings that only show a per-ounce price • Sorts the whole search cheapest per kg first • Marks the best deal in gold and the runners-up in green, ranked #1, #2, #3 • Loads more result pages automatically, so the ranking covers the whole search, not just page one • Clears out the noise: storage boxes, dryers, spool holders, 3D pen refills, and sample packs • Hides tiny spools below a size you choose (250 g bundles are hidden by default) FILTERS • Material: PLA, PLA+, PETG, ABS, ASA, TPU, Nylon, PC • Brand: show only the brands you trust • Refills: show all, hide spool-less refills, or refills only • Your settings sync across your Chrome devices STAYS OUT OF THE WAY Spoolghetti only switches on for filament searches. Shopping for anything else, it does nothing. Works in light and dark mode, including Dark Reader. PRIVATE BY DESIGN No tracking, no analytics, no accounts, no servers. Everything runs in your browser. A "~" means the weight was worked out from Amazon's unit price because the title didn't say. Always double-check the product page before you buy. Spoolghetti is an independent tool and is not affiliated with or endorsed by Amazon.