The Ontario Opioid Indicator Tool provides public access to indicators of opioid use, opioid-related harms, and access to treatment and harm reduction in the province from 2012 onwards. Since the ODPRN’s initial launch of this tool in 2018, the landscape of the overdose crisis in Ontario has shifted, with an increasing recognition that the majority of opioid-related harms have been associated with the unregulated opioid supply, which is predominantly made up of fentanyl. To better meet the needs of the current crisis, the tool has been updated with new indicators which have an increased focus on opioids used for the treatment of opioid use disorder, as well as complications arising from opioid-related harms not reported elsewhere.