v0

Supply a functional brief

v0 by Vercel presents full-stack application creation with AI. Describe the user's task, required states, and data boundaries, not only a visual style.

Test beyond the first screen

For a form, verify validation, failed requests, duplicate clicks, and where submissions go. For account-based work, test signed-out access and separation between users. Check mobile layouts with long real content.

Read generated changes and identify external services before adding credentials. Sensitive values should not appear in browser-delivered code.

Separate generation from release approval

Review environment variables, domains, authentication callbacks, and persistence in the target deployment. Keep a rollback path and confirm which data must survive it. A preview establishes that a page renders, not that permissions, costs, or operational behavior are ready for real users. Use test records until those checks pass.

Sources checked: 2026-09-15. Read our editorial policy or report a correction.