For guitar owners
Free, and built on the same standards the archive applies to its own instruments. Nothing you enter is transmitted, stored, or seen by us. Everything runs in your browser.
Instrument Dossier Builder
Five steps to a printable document: identification, label, condition, provenance, photographs. The format the archive uses for its own twenty five instruments.
Open the builder →Humidity Risk
Five questions, then relative humidity and wood moisture month by month, built on the USDA equilibrium moisture content tables rather than the usual unsourced number.
Open the calculator →Why these exist
The archive spent a year learning that most owners discover they have no documentation only after a loss, and that most humidity advice online is a number with no source behind it. These are the two things that seemed worth giving away.