Pinstack Calculator

The standalone pinstack calculator is designed for fast cylinder pinning, manual key entry, and real-world locksmith workflow without requiring full system generation.

What It Does

The pinstack tool converts key bittings into usable pinning stacks for IC and conventional pin cylinders. It allows you to either manually enter key information to create pinstacks or import from Atlas generated system files.

Focus: quick pinning output for bench or field use, not full system management

Core Features

Manual key entry with labels and bittings
Automatic pin stack generation from key cuts
IC-aware control key handling (toggleable)
Running clipboard pinout builder
Cylinder quantity tracking per entry
Total pin count accumulation for batching
Copy / download output for bench or field use
JSON save & reload of pinstack sessions

How It Works

You name and enter a key's cuts or select one from a generated system if you load a saved system. The calculator builds a pinning diagram from your entered keys, complete with buildup pins if using an IC DSD.

Each pinning diagram can be added to a running clipboard so multiple cylinders can be built into a single export batch via txt file, or copying to your device clipboard.

Workflow Use Cases

SFIC / LFIC Support

The calculator can switch between conventional pinning and IC-style control logic. When enabled, control shear calculations are included in the stack output.

Useful for mixed systems with mixed formats on a shared keyway

Export & Persistence

Pinstack sessions can be saved locally as JSON files. These preserve:

Fast Pinning. Quick Reference.

Use the calculator independently or load generated systems for full workflow coverage.

Important Notes

Important Notes

User account required to access tool
Use sign-up button at the top of the page.