BACKGROUND: Conversations about driving with older adults are often emotionally laden and decisions about retiring from driving can be challenging. Tailored tools, such as evidence-based decision aids could support conversations and decisions about driving for older adults. This study aimed to explore the acceptability and feasibility of a prototype decision aid for older drivers from the perspective of end-users. METHOD: This qualitative cross-sectional study utilized an online survey with 106 adults living in Australia. The 36-page web-based decision aid prototype was developed for older drivers living in New South Wales, Australia, using a co-design approach with multiple stakeholders. RESULTS: Respondents were healthcare professionals, older adults, family members, or friends of older adults and other professional groups. Decision aid acceptability was high. The presentation of the aid was highly regarded by older adults and healthcare professionals. The length and comprehensiveness were salient characteristics and could impact utility for healthcare professionals and older adults. Personal stories, risks, and incentives for driving retirement were important content to include. Various benefits of the decision aid were highlighted: supporting conversations and decision making about driving decisions and planning for future mobility changes. CONCLUSIONS: The older driver decision aid was a supported approach by healthcare professionals and family members to guide conversations and decision-making about driving with older adults. The decision aid triggered older adults to reflect upon their current driving, think about ways to stay safe on the road, or plan for alternatives to driving in the future. PRACTICAL APPLICATIONS: The older driver decision aid could be a useful tool for Australian healthcare professionals and family members when approaching a conversation and decision-making about driving with older adults. Using the decision aid may prompt older adults to reflect upon various aspects of decisions about driving early in the decision pathway.