> For the complete documentation index, see [llms.txt](https://know.rendernetwork.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://know.rendernetwork.com/docs/web-app/video-preview.md).

# Create a video preview

Create an MP4 preview from selected frames at thumbnail or full preview resolution.

{% stepper %}
{% step %}

## Open the download options

Open a job and click **Download Settings** in its top bar. In **Customize Download**, choose **Video**.

For other places to open this panel, including from selected frames, see [Choose particular frames, outputs, or passes](/docs/web-app/download-frames.md#choose-particular-frames-outputs-or-passes).

The app checks whether your browser can create videos. If the action stays unavailable, see [Browser support](/docs/help/browser-support.md#video-previews).
{% endstep %}

{% step %}

## Choose the frames and resolution

In **Frame Range**, keep **All Frames** selected or choose the range you need. Use **Advanced** to enter separate ranges, such as `1-24, 49-72`.

Keep **Hi-Res** checked to use [full-size previews](/docs/web-app/review-and-approve-frames.md). Uncheck it to use thumbnails for a smaller preview.

Choose at least two frames with images available at the selected resolution. The images must have the same dimensions. Separate ranges become one sequence in frame-number order, played at the job's frame rate.
{% endstep %}

{% step %}

## Create and save the video

Click **Download Selection**. The panel shows **Caching images**, then **Creating video**, with a frame count for each stage. Images already loaded for review are reused.

Keep the browser tab open until creation finishes. The browser then downloads a silent MP4 named after the job, and the panel shows **Video download started**.

Click **Download another sequence** to return to the selection controls.
{% endstep %}
{% endstepper %}

## If creation fails

* If an image is not available yet, wait for that frame to finish or choose another range.
* If the selected previews have different sizes, choose frames with matching dimensions.
* If the browser cannot create the video at that resolution and frame rate, try turning off **Hi-Res** or use another browser with [video encoding support](/docs/help/browser-support.md#video-previews).


---

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