Changeover Master – Machine Changeover OS
Offline-first, IndexedDB-powered changeover execution & compliance ledger for machine operators. Run rapid, safe, documented line changes with digital checklists, first-piece inspection, shift comparison, and a full audit trail.
Live demo
🔒 Read-only preview — source is not copyable. Preview responsive behavior with the device toggle.
About Changeover Master – Machine Changeover OS
Changeover Master is a premium, offline-first operating system designed for machine operators and production teams who need to execute machine changeovers with speed, precision, and full traceability. Unlike generic task managers or AI-driven assistants, Changeover Master is a purpose-built, non-AI tool that puts the operator in complete control. It leverages IndexedDB for local data persistence, meaning it works flawlessly even in remote factory floors, cleanrooms, or environments with no internet connectivity. There is no sign-up, no demo data, and no artificial intelligence—just a robust, responsive interface that mirrors the critical thinking of a seasoned changeover engineer.
The app is built around a comprehensive checklist engine that guides operators through every step of the changeover process, from pre-changeover preparation to post-changeover verification. Each step can include reference photos, tool lists, material requirements, and time estimates. Operators can start a timer for each step, log actual times, and compare performance across shifts to identify bottlenecks and best practices. The built-in first-piece inspection module ensures that the first product after a changeover meets quality standards, with photo evidence and sign-off capabilities.
Changeover Master also serves as a compliance ledger, capturing every action, deviation, and approval in an immutable audit trail. Supervisors can set rules, approve or reject deviations, and generate reports that highlight compliance scores, average changeover times, and exception trends. The audit calendar provides a visual heatmap of changeover activity, making it easy to spot patterns and plan maintenance windows.
Designed for the demanding environment of manufacturing, Changeover Master is fully responsive and optimized for both desktop and mobile devices, allowing operators to use it on the shop floor with gloves on or in the office. Its premium design, with dark theme and high-contrast accents, reduces eye strain during long shifts. The app is a complete digital transformation for changeover processes, reducing downtime, improving safety, and fostering a culture of continuous improvement.
Key features
- ✦ Step-by-step changeover checklists with photos and tool lists
- ✦ First-piece inspection module with photo capture and sign-off
- ✦ Real-time timers per step and overall changeover duration
- ✦ Shift comparison to benchmark and improve performance
- ✦ Full audit trail with timestamps and user attribution
- ✦ Offline-first with IndexedDB storage – no internet required
- ✦ No AI, no sign-up, no demo data – ready for production use
- ✦ Premium responsive design for desktop and mobile
- ✦ Export and import backup data for portability
- ✦ Global search and command palette for quick navigation
Use cases
- → Automotive manufacturing: quick die changes on stamping presses
- → Food & beverage: cleaning and changeover of filling lines
- → Pharmaceuticals: batch changeovers with strict compliance requirements
- → Packaging: switching between different packaging formats
- → Electronics: changeover of SMT lines for different PCB models
- → Chemical processing: cleaning and reconfiguration of reactors
- → Any manufacturing environment where changeover time is critical
FAQ
Does Changeover Master require an internet connection?
No, Changeover Master is fully offline-first. It uses IndexedDB to store all data locally on your device, so you can operate in remote factory floors or areas with poor connectivity without any issues.
Can I use Changeover Master without creating an account?
Absolutely. There is no sign-up required. You can download the app and start using it immediately. All data is stored locally on your device.
Is there any artificial intelligence in Changeover Master?
No, Changeover Master is purely a tool for operators. It does not use AI to make decisions. It provides checklists, timers, and documentation capabilities to support human decision-making.
How does the first-piece inspection work?
After a changeover, you can navigate to the inspection module, fill in the required measurements, take photos of the first piece, and get a sign-off from the operator or supervisor. This creates a documented record for quality assurance.
Can I compare performance between shifts?
Yes, the Reports section allows you to compare average changeover times, compliance scores, and other metrics across different shifts. This helps you identify best practices and areas for improvement.
Is my data secure?
Your data is stored locally on your device using IndexedDB, which is a secure browser database. You can also export and import backups to control your data.
Can I customize the checklists?
Yes, you can create your own changeover procedures and checklists. You can add steps, attach photos, specify tools and materials, and set time estimates.