Build secure custom apps (without exposing your database)

If you’ve ever tried to scale a traditional spreadsheet into a fully functional internal tool or client portal, you’ve likely hit a wall. Whether you are outgrowing Airtable interfaces or struggling to build secure dashboards in Smartsheet, the problem is usually the same: you either end up with a clunky user experience, or worse, you accidentally expose sensitive data because the platform lacks granular security.

This is where decoupling your database from your frontend changes the game. With Baserow’s native Application Builder, you can create custom web apps that share exactly what you want, and nothing you don’t.

Here’s a look at how you can build secure, custom interfaces on top of your data.

Decoupling your backend data from your frontend design

Your database is the single source of truth, but not everyone in your organization needs (or should have) direct access to the raw tables. The Application Builder acts as a dedicated presentation layer. Instead of writing code, you use a visual interface to stack elements like text blocks, tables, and a native form designer.

This allows you to control the data entry experience. Whether you’re building an internal dashboard for team members or a public-facing portal to collect service requests, you can dictate exactly how users interact with your organization’s data without ever exposing the backend.

Creating intuitive workflows with the form designer

Building your frontend is simple. Your application consists of pages and visual elements, like data tables, buttons, and our intuitive form designer.

By connecting these dynamic elements directly to your underlying data sources, you build a streamlined interface that simplifies how users interact with your information.

Safe testing and regular audits

If you need to test a new layout, you can easily duplicate your application to create a safe sandbox environment. Coupled with snapshots for point-in-time backups, you drastically reduce the risk of breaking live apps and maintain clear, historical records for regular audits.

Securing your app with granular access controls

The biggest risk of sharing a database view in standard spreadsheet tools is over-exposing information. Baserow tackles this by implementing strict data governance rules at the core level.

Instead of locking down an entire table, you can leverage specific visibility. For example, if you are building an employee directory, you can allow the public to see names and roles, but completely restrict access to salary data or personal contact information.

This granular security means you don’t have to create duplicate tables just to hide columns. You can define exactly what authenticated users can view, edit, or delete.

Before pushing your app live, you can even preview pages as specific simulated users to run regular audits on your setup, ensuring your data protection measures are working perfectly and reducing the risk of accidental exposure.

Frequently asked questions about custom database apps

How do I build a frontend portal without giving users access to my underlying database?

Unlike standard spreadsheet views where sharing a link risks exposing your entire backend, Baserow’s Application Builder is a separate presentation layer. It sits directly on top of your database, allowing you to use your existing tables as a single source of truth while strictly controlling what end-users see and interact with.

Can I build a custom client portal from a database without writing code?

Yes. You do not need to be a developer or hire an agency to build your frontend. The Application Builder is a highly visual, drag-and-drop tool that allows you to easily place tables, buttons, and forms. However, it still offers advanced configuration options if your team ever needs complex logic or external integrations.

How do I restrict user access to specific rows and columns in a custom web app?

Data governance is built into the core of Baserow. By leveraging granular element visibility and user roles, you can define exactly what specific authenticated users are allowed to view, edit, or delete. You can even simulate different user roles within the app builder to test your access controls before publishing.

Can I host my database application on a custom domain or white-label it?

Yes. If you are building a tool for external clients or an internal company portal, you can publish your application to a custom domain (e.g., portal.yourcompany.com). This allows you to maintain total brand consistency rather than forcing users to visit a generic Baserow subdomain.

Learn more about how to build secure custom apps using the Baserow Application Builder.