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Hallmark Scanner
Use the camera and OCR to read visible purity stamps such as 916, 750, 585, 22K and 18K.
Gold testing companion
Practical tools for gold and jewelry screening.
Scan visible hallmark stamps, review magnetic field readings, perform guided density checks, calculate estimated gold value, and keep your inspection history in one place.
Free tools · No subscription
Main features
Everything you need for a clearer inspection workflow.
Gold Toolkit combines camera, sensor and manual testing utilities. Results are screening estimates and should be confirmed by a qualified jeweler or laboratory.
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Magnetic Scanner
View live magnetometer readings, filtered axes, threshold alerts and a rolling field graph.
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Density Test
Follow a guided water-displacement workflow and compare the measured density with common metal references.
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Value Calculator
Estimate gold value by weight, purity, currency, market price and optional charges.
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AI Visual Lab
Review visible color, texture, lighting and object characteristics from a selected photo.
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Magnifier
Inspect tiny stamped marks more closely with camera zoom and torch support.
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Compass & Level
Use supported device sensors for directional and alignment utilities.
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Converters
Convert grams, tola, ounces and compare common karat and purity references.
App previews
Simple, focused tools with a consistent interface.
Live magnetic readings
Monitor field strength, axes and trends.
Gold value calculator
Calculate estimated value with clear inputs.
Guided density test
Follow each measurement step carefully.
Available for Android
Keep your gold inspection tools in your pocket.
Download Gold Toolkit and start with hallmark scanning, density guidance and gold value calculation.