# Trim and Split Screen Recordings — Free in Chrome

> Trim, split at the playhead, and ripple-delete the boring parts of a screen recording — free, in the browser, with full undo and autosaved edits.

- Canonical: https://www.superchargebrowser.com/features/timeline-editing/
- Extension: capture
- Published: 2026-08-04
- Updated: 2026-08-04
- Source: SuperchargeBrowser (https://www.superchargebrowser.com)

The recording is the easy part. What comes out of it is a draft: a false start before you found your rhythm, a wrong click you talked your way past, forty seconds of a package installing while you hummed. Most browser recorders hand you that draft as the finished file — if you want it tight, you're off to a separate editor. SuperchargeCapture puts a timeline directly under the preview, in the editor that opens the moment you stop recording.

## Trim the Ends, Then Cut the Middle

The two most common fixes get the two most direct tools. Drag the trim handles to shave the awkward opening and the trailing "okay, I'll stop it now" — internal cuts you've already made stay exactly where they were. For anything in the middle, park the playhead and press **S** (or the Split button): the clip divides in two at that exact frame, and the new right-hand clip is selected so your next action lands on it.

One guard rail worth knowing: a split within 100 milliseconds of an existing boundary is refused, with a hint telling you why. That floor exists so you can't accidentally produce a sliver clip too small to see or select.

## Ripple Delete: the Gap Closes Itself

Select a clip and press **Delete**. It doesn't leave a hole — the timeline closes up around the cut, the total duration drops by exactly the span you removed, and at export the video plays straight across the seam. That's a ripple delete, and combined with splitting it makes the standard middle-cut three keystrokes: S, S, Delete.

You can't delete your way into an empty timeline; the editor always keeps at least one clip. And if a boundary deserves more than a hard cut, any clip after the first can take a fade-in, blending from black at the edit point.

## Undo Deep, Save Automatic

The history isn't a token single-step undo. Every committed edit — a cut, a speed change, a caption, a blur region, a zoom — is one snapshot on a stack you can walk in both directions: **Ctrl/Cmd+Z** back, **Ctrl/Cmd+Shift+Z** or **Ctrl/Cmd+Y** forward.

Your work also survives you leaving. Edits autosave to a project file stored with the recording on your device, roughly half a second after each change, and reopening the recording restores the whole edit session. The honest caveat: uploaded assets — a background-music file or a custom background image — aren't stored with the project, so those need re-adding after a reopen. Their settings are kept; only the file itself is asked for again.

## The Shortcuts

| Key | Does |
|-----|------|
| Space | Play / pause |
| S | Split the clip at the playhead |
| Z | Add a zoom segment at the playhead |
| Delete / Backspace | Ripple-delete the selected clip |
| Ctrl/Cmd+Z | Undo |
| Ctrl/Cmd+Shift+Z or Ctrl/Cmd+Y | Redo |
| ? | Toggle the shortcut overlay |

Once trimming is in muscle memory, the timeline does more than cut: the same clips carry per-clip playback speed, and a one-click pass can find and remove silent gaps for you.

## Privacy

Editing happens entirely in your browser. The recording, the project file, and the undo history all live on your device — nothing is uploaded, and there's no account behind any of it. Export happens locally too; nothing is baked into the file until you ask for it.

Questions? Reach out at support@superchargebrowser.com.

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Canonical URL: https://www.superchargebrowser.com/features/timeline-editing/