Video editor

How to cut, trim, or mute parts of your video

Screendesk includes a built-in video editor that lets you polish your recordings before sharing them. You can trim the start and end, cut out unwanted sections in the middle, and mute audio in specific parts — all directly in your browser, with no external software needed.

Opening the Editor

To open the video editor:

1. Navigate to the recording you want to edit.

2. Click the Edit button (scissors icon) in the recording toolbar.

3. The editor opens in a full-screen modal with a video player on top and a waveform timeline below.

The editor loads the video and displays its audio waveform, which gives you a visual representation of the sound throughout the recording. A draggable region (highlighted area) on the waveform lets you select the portion of the video you want to work with.

Editing Tools

The editor provides three core actions, each operating on the selected region of the waveform.

Trim

Trimming keeps only the selected portion and removes everything outside it. This is the most common edit — use it to cut off the beginning where you were getting set up, or the end where you stopped sharing.

1. Drag the region handles on the waveform to select the section you want to keep.

2. Click the Trim button.

3. Everything outside the selected region is removed.

Cut

Cutting removes the selected portion and keeps everything else. This is useful for removing a mistake or an irrelevant section from the middle of a recording.

1. Drag the region handles to select the section you want to remove.

2. Click the Cut button.

3. The selected section is removed and the remaining parts are joined together seamlessly.

Mute

Muting silences the audio in the selected portion while keeping the video intact. Use this to remove background noise, a private conversation, or any audio you don't want viewers to hear.

1. Drag the region handles to select the section you want to silence.

2. Click the Mute button.

3. The audio in that range is set to zero while the video continues playing normally.

Working with the Timeline

The waveform timeline is your main tool for selecting regions:

• Drag the left and right handles of the highlighted region to adjust the selection.

• Time indicators on either side of the region show the exact start and end times in seconds.

• Hover over the waveform to see a time cursor that helps you navigate precisely.

• The red cursor line shows the current playback position.

You can play the video at any time to verify your selection before applying an edit.

Undo and Redo

Every edit is recorded in a history stack, so you can freely experiment:

• Click Undo to revert the last edit and restore the previous version.

• Click Redo to reapply an edit you just undid.

You can undo and redo multiple times, stepping back and forward through your entire edit history.

Saving Your Edits

When you're satisfied with the result:

1. Click Save and Close in the top bar or at the bottom of the editor.

2. The edited video is uploaded and saved to your recording.

3. You're redirected back to the recording detail page.

After saving, Screendesk automatically re-runs the AI transcription and summary on the edited video, so your transcript stays in sync with the final content.

All video processing happens in your browser using WebAssembly. Your video data is not sent to an external server for editing — the edited result is uploaded directly to your Screendesk workspace when you save.

Reverting to the Original

If you want to discard all edits and go back to the original recording:

1. Open the editor.

2. Click Revert to Original in the top bar.

3. The edited version is removed and the recording reverts to the original video.

Reverting is permanent — the edited version is deleted. The original recording is always preserved, so you can revert at any time, even after saving multiple rounds of edits.

Tips for Support Teams

Quick cleanup workflow: Record your full walkthrough without worrying about mistakes. Then open the editor, trim the setup time from the beginning, cut any pauses or errors from the middle, and mute any sections with background noise. The result is a clean, professional video in minutes.

• Trim first, then refine. Start by trimming the start and end to remove dead time, then make targeted cuts if needed.

• Use mute instead of cutting when you want to keep the visual flow but remove unwanted audio (background conversations, notifications, etc.).

• Preview before saving. Play through the video after each edit to make sure the result looks right.

• Don't worry about mistakes. The undo/redo history lets you experiment freely, and you can always revert to the original.