The Lookup

Objective specs for real-world things. No opinions, just facts.

Reference Databases

batteries.fyi

Every battery type, every spec. Dimensions, voltages, capacities, chemistries.

cables.fyi

Cable and connector confusion, solved. USB types, display cables, audio jacks.

fasteners.fyi

Screws, bolts, nuts, anchors. Thread pitches, head types, material specs.

Every Lookup database follows the same principle: confusion to clarity. We don't tell you what to buy. We give you the specs so you can decide.

No ads | No affiliate links | No recommendations | Just data