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utils.sbs

Mockups tool

X Post Mockup

Preview an image inside an X/Twitter post card with author and engagement.

Runs on-deviceNo sign-upFree
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X Post Mockup workspace

Workspace

X Post Mockup

Runs locally

Drop a screenshot or artwork

or · PNG, JPG, WebP

These are stylised canvas scenes rather than stock photography. Your uploaded artwork is placed with cover or contain fitting, and the final PNG is generated on this device.

Mockup preview

Add an image to see the scene.

The guide

By the utils.sbs team · Reviewed November 2026 · How we build and review tools

Quick answer

X Post Mockup is a free browser-based mockups tool. Preview an image inside an X/Twitter post card with author and engagement. It runs with Canvas composition locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.

What is X Post Mockup?

X Post Mockup is a free browser-based mockups tool from utils.sbs. Preview an image inside an X/Twitter post card with author and engagement. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.

At a glance

CategoryMockups
InputImage files and the selected device or scene
OutputA rendered mockup image
EngineCanvas composition
ProcessingIn your browser
PriceFree
AccountNot required

How X Post Mockup works

Mockups are composed on a canvas from your artwork and the selected device or scene. The final image is rendered locally.

How to use X Post Mockup

  1. 1Open X Post Mockup and add your input.
  2. 2Adjust the options: scene colour, scene gradient, ambient shadow, display name and more.
  3. 3Run the tool, check the preview or result, and download the output.

When to use X Post Mockup

  • Preview artwork on a device or scene before publishing.
  • Create a presentation image for a design portfolio.
  • Export a mockup without opening a full design suite.

Inputs and options

Scene colour
Set this value before running the tool.
Scene gradient
Set this value before running the tool.
Ambient shadow
Set this value before running the tool.
Display name
Set this value before running the tool.
Handle
Set this value before running the tool.
Caption
Set this value before running the tool.
Verified badge
Toggle this option on or off.

Limitations

Output resolution is limited by the source image and the browser's maximum canvas size.

Privacy and accuracy

X Post Mockup processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.

FAQ

X Post Mockup questions

  • What can I do with X Post Mockup?

    Preview an image inside an X/Twitter post card with author and engagement. X Post Mockup is part of the Mockups shelf on utils.sbs and is designed for quick, one-off tasks.

  • Is X Post Mockup free to use?

    Yes. X Post Mockup is free, requires no account, and has no per-file or per-use charge.

  • Are my files uploaded when I use X Post Mockup?

    No. X Post Mockup is designed to process your input locally in the browser. Files are not uploaded to a server for processing.

  • What formats does X Post Mockup support?

    It accepts image files and renders a composed mockup as a downloadable image.

  • Can I use X Post Mockup on my phone?

    Yes. X Post Mockup is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

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