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This page explains how to configure a custom domain for your OpnForm instance.
This guide covers the instance-wide domain for your self-hosted OpnForm deployment. Workspace or form-level custom domains are configured separately inside OpnForm and are not the same as the instance URL.

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Custom Domain Setup

To use a custom domain (or subdomain)with OpnForm:
  1. Purchase a domain (if needed)
  2. Configure DNS records to point to your OpnForm instance
  3. Update OpnForm configuration:
    • Set APP_URL in .env
    • Set NUXT_PUBLIC_APP_URL and NUXT_PUBLIC_API_BASE in client/.env
  4. Secure with SSL certificate
The easiest way to get started with OpnForm is through our official managed service in the Cloud. It takes just 1 minute to start building forms with the free plan, with high availability, backups, security, and maintenance all managed for you.