The Probe Inspector

Last updated
February 5, 2026

The Probe Inspector is the main interface for reviewing probe results in Uiprobe.

It brings together the visual comparison canvas, detected issues, probe versions, and view controls in a single workspace, allowing you to inspect visual differences efficiently and in context.

The canvas

The canvas is the central area of the Probe Inspector.

It displays the visual comparison between the Figma design and the live webpage. Markers appear on top of the canvas to indicate where visual issues are located. Selecting a marker focuses the canvas on the affected area and opens the corresponding annotation card.

The canvas responds to your interactions:

  • selecting issues
  • switching view modes
  • navigating between probe versions

View controls

View controls are located in the top toolbar of the Probe Inspector.

They allow you to switch between different view modes, such as Web, Figma, Split, Overlay, and Diff. These modes change how the comparison is displayed on the canvas, without affecting the detected issues or probe data.

The Issues panel

The Issues panel lists all detected issues for the selected probe version.

Issues are shown in a structured list and can include grouped issues when multiple differences occur on the same element or within the same segment.

Selecting an issue in the panel highlights the corresponding marker on the canvas and opens the related annotation card.

The Issues panel also supports filtering and collapsing issue groups, making it easier to focus on specific parts of the page.

The Versions panel

The Versions panel allows you to navigate between different runs of the same probe.

Each version represents a snapshot of the comparison at a specific point in time. Switching versions updates:

  • the canvas
  • the markers
  • the issues list

This makes it possible to review how visual differences change as designs or implementations evolve.

How everything works together

The Probe Inspector is designed around synchronized interaction:

  • selecting an issue updates the canvas and annotation card
  • selecting a marker updates the Issues panel
  • switching versions updates all visible data
  • changing view modes affects only the canvas

This tight coupling allows you to move fluidly between spatial inspection and structured review.

What the Probe Inspector is not

The Probe Inspector is focused on visual review.

It does not:

  • manage tasks or assignments
  • replace ticketing or collaboration tools
  • perform functional or accessibility testing

Its role is to make visual differences clear, navigable, and easy to inspect.

Related concepts

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