Free converters usually work only for small or simple files. Common limitations include contact count restrictions, missing preview, limited field support, and poor handling of special characters. Many free tools also lack proper phone labels or drop business-related fields like job title and company.Another issue is privacy. Online free tools often require uploads, which isnt ideal for sensitive contact data. In comparison, paid tools such as Softaken Excel to VCF Converter focus on offline processing, accurate mapping, and full field retention. Free options are useful for testing concepts, but they rarely meet real-world conversion needs.