miniExtensions and Airtable’s Interface Designer both help people work with Airtable data without using the full base. The best choice depends on the workflow, how people sign in, and which records they should be able to access. It is not simply a choice between internal and external users.
Airtable Interface Designer
Use this to build interfaces inside Airtable, such as dashboards, record-review pages and team workflows. Access is managed through Airtable’s sharing and collaborator permissions. Invited collaborators generally sign in with an Airtable account; public sharing is a separate, plan- and layout-dependent option. See Airtable’s Interface Designer overview and sharing guide for the current options.
Airtable Portals
Airtable also offers a Portals add-on for external collaborators. It uses Interface Designer, with guest invitations, a guest sign-in experience and access to the interfaces shared with each guest. This means Airtable interfaces are not limited to employees. Eligibility, available branding and billing depend on the Airtable plan and guest access. Check Airtable’s Portals guide rather than assuming that every external user needs the same kind of seat.
miniExtensions Interface
A miniExtensions Interface presents records through a shareable miniExtensions page without a per-user login. It is useful when visitors should see the same configured set of records, such as a catalog. You choose the fields, layouts and actions available to visitors. Do not use an unauthenticated interface when each person must see only their own private records.
miniExtensions Portal
A miniExtensions Portal adds a login and a Users Table in your Airtable base. You connect users to the records they should see and configure the login and editing options. End users do not need an Airtable account to use the portal. Start with the Users Table setup guide.
For example, a customer portal can show each customer their linked orders, while a field-work portal can show assigned locations in a Map view. These use the portal’s supported layouts and settings; they are not a promise of a completely freeform dashboard designer. See the available view types.
How to choose
Start with Airtable Interface Designer if you want to manage the experience through Airtable’s own interface and collaborator system.
Compare Airtable Portals and miniExtensions Portals if external users need to log in. Check the login experience, access rules, required actions and current pricing for your specific workflow.
Choose a miniExtensions Interface when a shared view of the configured records is sufficient and individual logins are not needed.
If users mainly submit or edit one record at a time, compare a miniExtensions Form with a Portal before building a larger setup.
Whichever option you choose, test it as an end user before sharing it. Access depends on your configuration; no product choice alone guarantees that the right records are visible.
Comparison checked on October 22, 2026. See the linked Airtable documentation for its current plan and sharing requirements.