Sometimes, older official sample PDFs from The KPI Institute (e.g., "Sample 200 Essential KPIs") are archived on the Internet Archive. While these are not the full 17,000, they are legal to view and provide excellent value.
The "KPI Mega Library" is a widely recognized resource in the field of business performance management. While often searched for as a free PDF download, it is primarily a commercial product sold by the (operating under the entity KPI.LLc or_strategy management groups). kpi mega library 17 000 key performance indicators pdf link
Conclusion A “KPI Mega Library” with some 17,000 entries can be a useful reference and ideation tool, but it must be used judiciously. The real value of performance measurement lies not in the number of KPIs tracked but in selecting a focused, strategy-aligned set of actionable metrics, governing them well, and embedding them into decision processes. Treat the library as an encyclopedia—helpful for discovery—but design measurement programs around organizational context, data readiness, and behavior you want to encourage. Sometimes, older official sample PDFs from The KPI
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If you are looking for inspiration without the cost, several open-source repositories exist: While often searched for as a free PDF