About StackLogic
Democratizing 3D freight load planning, volumetric optimization, and Center of Gravity balancing with free, browser-native tools.
Our Mission
For decades, industrial-grade 3D container loading software was locked behind expensive enterprise licensing models, complicated desktop installs, and rigid vendor lock-in. Independent freight forwarders, warehouse staff, moving coordinators, and small manufacturers often had to rely on cumbersome 2D spreadsheets, inaccurate manual approximations, or guess-work at the loading bay.
StackLogic was created to solve this challenge by providing a fast, 100% free, browser-based 3D cargo planning tool requiring zero signup, zero software downloads, and zero credit cards.
Core Capabilities
3D Bin Packing Heuristics
Our loading algorithms simulate real-world spatial geometries, package rotation tolerances, and sequence priorities (loading deepest items first).
Weight & CoG Precision
Calculating physical volume is only half the battle. StackLogic tracks center-of-gravity offsets in real time to prevent highway axle overload violations.
Universal Equipment Support
Support for 10ft, 20ft, 40ft, 40ft High Cube containers, refrigerated reefers, custom flatbed vehicles, and commercial rigid trucks.
Built by Logistics & Web Engineers
StackLogic is continuously maintained and improved based on real feedback from warehouse operators, logistics professionals, and people relocating internationally. If StackLogic has saved your team time and prevented loading bay headaches, consider sharing it with your network or supporting continuous development.
Ready to Optimize Your Next Shipment?
Open our free interactive 3D container workspace now.
Open 3D PlannerStackLogic gives estimates only. Results are planning guidance and may not reflect real loading conditions, weight limits, regulations or carrier rules. Always verify dimensions, weights and the loading plan with your freight forwarder or carrier before shipping. Use at your own risk; no warranty is given. Some links are affiliate links; we may earn a commission at no cost to you.