Free reliability and maintenance tools
Predict failures and keep equipment and products performing: from breakdown logs and Weibull plots to system reliability, accelerated tests and the maintenance strategy that fits each failure mode.
- 100% free
- No sign-up
- Engineering-grade calculations
- Export to PDF, PNG & Excel
Reliability Block Diagram
Model series, parallel and k-out-of-n systems and find the block the system depends on most.
Open tool → Free toolWeibull Analysis
Fit a Weibull distribution to failure data with suspensions: β, η, B10 life and a probability plot.
Open tool → Free toolAccelerated Life Testing
Fit Arrhenius or inverse power law models, predict life at use and plan a zero-failure test.
Open tool → Free toolReliability-Centered Maintenance
Go from functions and failure modes to consequences and the right maintenance task.
Open tool → Free toolTotal Productive Maintenance
Assess the eight TPM pillars on the TPM house and track OEE and other TPM KPIs.
Open tool → Free toolMTBF/MTTR Analysis
Calculate MTBF, MTTR and availability per asset from a failure log and find the priorities.
Open tool →Which tool do you need?
| You want to… | Use |
|---|---|
| Find the assets that fail most or take longest to repair | MTBF/MTTR Analysis |
| Understand how a part fails over its life | Weibull Analysis |
| Predict life at use from high-stress tests | Accelerated Life Testing |
| Calculate the reliability of a system with redundancy | Reliability Block Diagram |
| Decide the right maintenance for each failure mode | Reliability-Centered Maintenance |
| Assess and steer a TPM programme | Total Productive Maintenance |
From data to a maintenance strategy
- Measure equipment performance with MTBF/MTTR analysis.
- Understand how critical parts fail with Weibull analysis, and how the system depends on them with a reliability block diagram.
- Decide the right maintenance for each failure mode with RCM.
- Embed it on the shop floor with TPM, and design reliability into new products with accelerated life testing.
Keeping equipment maintained
Reliability depends on maintenance that actually happens. Cloudtheapp keeps equipment profiles, calibration and maintenance schedules, instructions and approvals per asset in one validated system, with reminders before anything falls due.
Frequently asked questions
Which reliability tool should I start with?
For equipment in operation, start with MTBF/MTTR analysis of your breakdown log to find the problem assets. For a component that wears out, use Weibull analysis of its failure times. For a new design, model the system with a reliability block diagram and test components with accelerated life testing.
What is the difference between RCM and TPM?
RCM is an analysis method that decides the right maintenance task for each failure mode of an asset. TPM is a company-wide programme that involves operators and management in equipment care and improvement. They work well together: RCM decides what to do, TPM builds the organisation that does it.
What statistics do these tools use?
Weibull analysis uses median rank regression with Johnson's adjustment for suspensions or maximum likelihood. Accelerated life testing fits Arrhenius or inverse power law models by regression with a confidence interval, and plans zero-failure tests with the Lipson equality. The RBD uses series, parallel and k-out-of-n formulas.
Are these tools free?
Yes. Every tool is free, needs no account and keeps your data in your browser. Export to PDF, PNG or Excel, or save a file to continue later.
Keep equipment maintained and calibrated on schedule
Cloudtheapp keeps equipment profiles, calibration and maintenance schedules, instructions and approvals in one validated cloud platform, with reminders before anything falls due.