VCard to CSV Converter

This tool converts RFC 6350 compliant vCard data into a CSV representation suitable for bulk import into CRMs, marketing platforms, or data warehouses. It processes one or more VCARD blocks, extracts core fields (FN, N, TEL, EMAIL, ADR, ORG, TITLE, URL, BDAY, NOTE), and maps them into a flat, tabular row with a defined header order. The conversion preserves data fidelity by escaping fields according to CSV standards and handling multi-valued properties. The algorithm supports optional delimiter customization and field mapping overrides for advanced users. It is designed for developers and data teams handling contact migrations, API ingestions, or automation pipelines that require a CSV payload. The tool emphasizes correctness, performance on sizable inputs, and predictable output formatting to minimize downstream cleaning. The resulting CSV can be consumed by CRM imports, data warehouses, and integration scripts. In practice, a single vCard with a name, phone, and email yields a row like: | first_name | last_name | full_name | phone | email | organization | title | url | birthday | note |. Users may supply multiple VCARD blocks in one input, with each block producing a separate CSV row. The tool avoids persisting user data between runs, delivering results to the client. Use cases include data migration projects, CRM onboarding, and automated contact synchronization workflows.