Multi-Device Mockup

Show your design across phone, tablet, and desktop devices in a single responsive preview scene.

Tested tool guide Tested browser tools Checked August 16, 2026

What Multi-Device Mockup does and how it behaves

Multi-Device Mockup places a design into phone, tablet, and desktop views and arranges them as one comparison scene. The combined composition helps show how the same visual idea reads at three familiar device scales. The important distinction is that this is a mockup, not a responsive-browser test. A convincing scene does not prove that a live page changes correctly at breakpoints, preserves readable text, or supports touch and keyboard interaction. Use the result to communicate cross-device intent, then verify the actual interface separately.

How the result is produced

Three device contexts

Phone, tablet, and desktop presentations appear together rather than as three unrelated mockups. Each view places the supplied design within a differently proportioned device area, making broad differences in composition and emphasis easier to notice. These areas represent device categories; they do not, by themselves, establish exact CSS viewport dimensions or identify particular hardware.

One comparison scene

Because all three device views occupy one composed scene, the result should be read as a visual comparison. Apparent hierarchy, cropping, and text size depend on how the source design appears inside each frame. The scene communicates a cross-device concept, but it does not reveal breakpoint values, document structure, interaction behavior, or the conditions that produced a responsive layout.

Good uses

Preparing a portfolio case study that needs one image showing how an application or website concept is intended to look on a phone, a tablet, and a desktop display.
Reviewing a proposed landing page with stakeholders who need to compare cross-device presentation without opening three separate screenshots or interpreting CSS breakpoint specifications.
Building a product presentation in which the same campaign, interface, or visual identity must be shown across several device categories within a single coordinated scene.

Limits and checks

Do not treat the three framed views as proof that a real page responds correctly. A mockup cannot demonstrate media-query changes, reflow, overflow handling, focus order, touch targets, or runtime behavior.
Do not infer an exact phone, tablet, desktop model from a generic frame. Physical screen size, pixel density, browser controls, display cutouts, safe areas, and operating-system interface elements can differ.
Check small text and edge content carefully. Scaling a design for the combined scene can make details appear less legible, while framing may hide whether an apparent crop is intentional or represents missing content.

Common questions

Can this mockup confirm that my website is responsive?

No. It can show a cross-device presentation, but responsiveness is behavior produced by the live layout at different viewport sizes and conditions. Test the implemented page in real browsers, including widths near its breakpoints. Also check scrolling, zoom, text reflow, pointer and keyboard input, orientation changes, and content that differs from the mockup.

Does my design leave the browser when I create the scene?

No. This tool runs entirely in the browser, and the design is not uploaded. That is relevant when the source contains unreleased interface artwork or client material. The boundary applies to processing by the tool; any scene or screenshot that you later share, publish, or store elsewhere is subject to the privacy controls of that destination.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.