Correct sideways or mirrored clips in one UniConverter Video Editor workflow. The current desktop interface supports a queue of up to 20 videos, per-selected-file Rotate controls, preview, a shared Save to location, and one Export action after the videos are prepared.
Current UI evidence confirms Video Limit: Up to 20 videos, Add Video, Add Folder, Add Files, Rotate, Save to, and Export. The interface does not show an Apply to All control for Rotate.
The batch value is one multi-video workspace: build the queue, correct the selected file, move to the next source, then export the prepared collection. Rotation remains a per-video decision.
The current Video Editor keeps orientation correction inside the Rotate control while Crop and Aspect Ratio remain separate. That distinction matters when several videos have different problems.
The empty Video Editor screen shows Video Limit: Up to 20 videos, together with Add Video, Add Folder, and drag-and-drop intake. After media is loaded, the current file area displays the count as Number of Files (2 / 20) in the supplied example.
Select a video in the file list and switch on Rotate. The current panel provides the two standard 90-degree rotation controls described in the official UniConverter crop/rotate guide: clockwise and counterclockwise.
The same Rotate panel also includes horizontal and vertical flip controls. Flipping is different from rotating: it mirrors the image rather than turning the frame by 90 degrees.
The current Video panel shows Crop, Aspect Ratio, and Rotate as separate switches. Rotation fixes orientation; it does not automatically reframe the shot or change the intended social-media ratio.
These names and states come from the current desktop screenshots you supplied, with the four rotation/flip actions cross-checked against the current UniConverter crop/rotate guide.
| Current UI control | What it does | Batch note |
|---|---|---|
| Video Limit: Up to 20 videos | Defines the current queue limit shown on the empty Video Editor screen. | Build one rotation job with up to 20 videos in the current interface. |
| Add Video / Add Folder | Adds individual videos or a folder from the empty workspace. | Useful for building a multi-video job without importing every file separately. |
| Number of Files (x / 20) | Shows how many videos are currently loaded; the supplied example shows 2 / 20. | Use the thumbnails to switch between videos and review each orientation. |
| Rotate | Enables orientation controls for the selected video. | No Apply to All control is shown in the supplied Rotate panel. |
| Clockwise / Counterclockwise | Turns the selected video by 90 degrees in the chosen direction. | Use per video when source orientation differs across the queue. |
| Horizontal / Vertical Flip | Mirrors the selected video left-right or top-bottom. | Do not confuse mirroring with 90-degree rotation. |
| Crop / Aspect Ratio | Separate controls for framing and frame shape. | Use them only when orientation correction alone does not solve the visual problem. |
| Save to | Chooses the output location for the prepared videos. | Set a clear destination so rotated outputs are easy to compare with originals. |
| Export | Processes the prepared editing queue in the current UI. | The current screenshot uses the label Export, so this page does not rename it Export All. |
Current UI evidence is from the UniConverter desktop screenshots supplied on September 24, 2026. The current official guide also describes clockwise rotation, counterclockwise rotation, horizontal flip, and vertical flip.
Use the current Video Editor workflow: open the tool, build a queue, correct each selected video's orientation, then choose the output location and export.
From UniConverter Home, open the Video area and select Video Editor. On the empty workspace, add or drag videos, use Add Video, or use Add Folder. The current screen states Video Limit: Up to 20 videos.
Choose a video from the file list, switch on Rotate, then use clockwise, counterclockwise, horizontal flip, or vertical flip as needed. Check the preview and repeat for the other selected files that need correction.
Move through the loaded thumbnails and confirm each orientation. Choose the Save to destination, then click Export after the prepared videos are ready.
Use the batch workflow when several clips need orientation review, while still allowing each source to keep the correction that fits its own camera position and framing.
Correct several clips captured with the phone held in the wrong orientation without creating a separate editing job for each file.
Review portrait, landscape, and accidentally rotated camera files in one queue, then correct only the clips that need it.
Use horizontal or vertical flip for mirrored footage while keeping 90-degree rotation for genuinely sideways clips.
Prepare multiple source videos before the next editing or publishing step while keeping orientation correction separate from cropping and aspect-ratio changes.
Build a queue of up to 20 videos, correct the orientation of each selected file with Rotate or Flip, review the previews, choose Save to, and use Export when the prepared batch is ready.
