Bar inventoryshouldn’t costyou a thing.
A brilliantly built inventory program that lives on your laptop. Voice-walk, count, reconcile, and Process — no AI required. Optional AI only if you want invoice photos read for you. Free. No subscriptions. No vendor lock-in.
The Problem
Every bar manager knows the drill.
End of the calendar month. Grab a barback & clipboard. Count every bottle by tenths. Scribble numbers on paper. Walk to the office. Type it all into a spreadsheet someone made in 2014. Try to reconcile against POS sales. Watch it never add up. Repeat next month.
The bar industry has been doing this for decades. And companies have profited from the pain — selling $3,000 inventory guns, $200/month SaaS platforms, and consulting services that charge by the bottle.
AI changed everything. Now we can build this program for free. So we did.
Read the full manifesto
Get Your Time Back
Precision instruments for the craft.
We provide one simple system. Here you will find the free program and the markdown that explains how it works.
One free program, the full workflow inside.
The pieces below live inside one free program for the full inventory workflow.
Smart Inventory Sheets
Pre-built spreadsheets that calculate cost, usage, variance, and reorder points.
Variance Tracker
Compare physical counts against POS sales by category, bottle, and shift.
Optional Invoice Photos
Type invoice numbers yourself — or connect AI to read paper invoice photos from your phone.
Product Database
500+ common bar products with bottle sizes, costs, and standard pours.
Years of field-tested knowledge — spoken the way it was meant to be.
— The philosophy behind Open Source Barware
Open the program. Start tonight.
No signup. No email capture. No sales pitch. Download the program and get to work.