How to trim a screen recording

The short answer

Trim the start and end first. Then split around any middle mistake, remove only that section and play the joins before exporting. Keep the original recording until the final download has been checked.

A trim changes when a clip starts or ends. A split cuts one clip into two so you can remove or move a middle part. Microsoft's trimming guide separates both from cropping, which changes the visible frame rather than the duration.

1. Decide what the finished video must keep

Watch the recording once before editing. Note the moment the useful explanation starts, the moment it finishes, and any middle sections that would confuse a viewer. Do not start by shaving seconds at random.

Keep the sentence or action that makes the next step understandable. If you say "now choose Export" and then click Export, the words and click should stay together. A tighter video is useful only when the viewer can still follow it.

For a tutorial, the usual safe cuts are setup time, repeated attempts, long waits and the final search for the stop button. Keep short pauses when they give the viewer time to see a menu or result.

2. Trim the start and end in Creator Recorder

1. Open the recording in the editor and select the clip.
2. Play to the first moment you want viewers to see.
3. Use Trim In (Start), then Set at playhead. Use the 0.1-second nudge buttons for a small correction.
4. Play to the last useful frame.
5. Use Trim Out (End), then Set at playhead.
6. Play the new start and ending before making any middle cuts.

The current editor also has a Trim tool for choosing a section to keep or delete. Labels can change as the editor improves, so follow the on-screen wording and review the result rather than relying on memory.

Other editors use the same boundary idea. Apple's video-editing guide has start and stop sliders and recommends previewing the trimmed video. Its Save as New Clip option keeps the original and saves a separate trimmed version.

3. Remove a middle mistake with splits

For a mistake in the middle, split just before the unwanted section and again just after it. Select the new middle piece and delete it. Then play from a few seconds before the cut to a few seconds after it.

Check that the voice does not jump halfway through a word and that the screen still makes sense. If the removed section contained an action the next sentence refers to, either keep that action or record a short replacement instead of hiding the gap.

YouTube's trimming help uses different boxes for the two cases: drag the blue box around the part to keep, or the red box around a middle part to remove. That distinction is a useful mental check in any editor: are you choosing what stays, or what goes?

4. Preview before you export

Play the whole edited video at normal speed. If time is tight, at least check the start, every cut, and the end. Listen for clipped words, missing clicks and jumps in the mouse pointer. Watch the picture as well as listening to the narration.

YouTube's review guidance says to preview editor changes before saving and to review the published video afterwards, because saved editor changes cannot be reverted to the original state. Do not treat an editor preview as proof that the downloaded file is correct; export, open the saved file and check it again.

Screencastify's trimming help warns that its trim cannot be reversed. That is another reason to keep the original recording or make a duplicate before a destructive edit.

5. Export the checked final version

When the edit plays correctly, download the final video and keep the browser tab open until the file has saved. Open that downloaded file, not only the editor, and check the first seconds, middle joins, sound and final frame.

Name the final file clearly, such as the topic plus final and the date. Keep the original and the checked final export until the video is published and reviewed. If you need to change the container or upload destination, use the MP4 and WebM guide after the edit is finished.

Trimming checklist

• The useful explanation starts promptly.
• The last useful frame and call to action remain.
• Middle mistakes are removed without cutting a needed action.
• Words are not clipped at the start, end or joins.
• Pointer movement and screen changes still make sense.
• The full edited preview has been played.
• The downloaded file has been opened and checked.
• The original recording remains available until publication is confirmed.

Common questions

Sources and related guides

YouTube, Microsoft, Apple, Screencastify, Screendesk and Screen Studio references were checked 16 October 2026, including the Screendesk trim-versus-cut workflow and Screen Studio trimming guide. Editor labels and undo behaviour can change, so review the actual result before deleting a source file.