Fire Assaying
Automation

Accelerate your fire assaying calculations, eliminate manual transcription errors, and export results directly to Excel — all from one powerful Chrome extension.

🏭 61+ Assay Centres
100+ Daily Requests
4.9 Rated
📄 50+ Daily Exports

Everything you need,
built right in

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Instant Auto-Entry

Loads page articles, triggers assaying calculations instantly, and injects formulas directly into Web UI columns automatically.

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Device Fingerprint Lock

Advanced canvas-hashing hardware footprint blocks credential sharing, protecting your extension license boundaries.

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Excel Sheets Export

Imports and writes spreadsheet averages, parses gold and silver delta values, and exports reports with clean calculations.

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BIS Formula Engine

Automatically calculates Ag, Cu, Pb ratios per BIS standards with live delta and fineness readouts per strip.

How to Install in Chrome

01
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Download ZIP

Click Download Extension ZIP above and extract fireassying.zip into any folder.

02
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Open Extensions

In Chrome, go to chrome://extensions/ in the address bar.

03
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Developer Mode

Toggle Developer mode ON at the top-right of the Extensions page.

04
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Load Unpacked

Click Load unpacked and select the folder with manifest.json inside.

Also available on HallmarkPro

This extension is part of the HallmarkPro platform — a complete hallmarking management suite trusted by assaying centres across India.

61+
Centres Using
100+
Daily Requests
4.9★
Rated by Users
50+
Daily Invoices
verified
HUID Software
Full marking & tracking
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Billing App
GST invoices in one click
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GST Reports
Automated compliance
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Customer Ledger
Accounts & transactions
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Assay Automation
Auto-fill & Excel exports
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Accounting Suite
Full centre financials
Learn more about HallmarkPro arrow_forward