When patients are diagnosed or concerned with the diagnosis of melanoma, they commonly use the Internet for information. We assessed the content of patient-focused websites about melanoma. We searched for "melanoma" in four search engines then assessed the first 30 websites in each search. Among included sites, we describe potentially useful content about melanoma: website quality, readability, popularity, and social media sharing. In 31 included websites, > 80% mentioned the definition and risk factors for melanoma, when to seek medical help, how to diagnose, and treatment options, and > 70% described preventive measures. However, website quality was variable: 61% of websites had disclosures, 54% were dated, 41% had a clear author, and 41% had references. Average readability ranged from 8th to 12th grade, which is above recommended reading levels for patient websites. Despite this variation and high reading levels, we identified many high-quality melanoma websites for patients.