Video Trimmer

Trim videos instantly in your browser. No server upload required.

Loading Video Engine (First time may take a few seconds)...

Why use UnitMaster Trimmer?

We use advanced WebAssembly technology to process video directly on your device. This means no uploads, no waiting, and 100% privacy.

100% Private & Secure

Your files never leave your device. Processing happens locally in your browser sandbox.

Checking Network...

Instant Processing

No upload time. No server queues. Since we process files locally, even large 4K videos open instantly for editing.

Lossless Quality

Our "stream copy" mode trims your video without re-encoding it. This preserves the exact original quality, bitrate, and resolution.

Supported Formats

MP4 (H.264)MOV (QuickTime)WebMMKVAVI

How to Trim a Video

1. Upload Video

Drag and drop your video file. We auto-detect the format and load it instantly.

1
2

2. Set Start & End

Use the timeline sliders to choose your clip. You can also type precise timestamps.

3. Download

Click "Trim Video". Your new clip is created instantly and ready to save.

3

Frequently Asked Questions

Privacy Dashboard

Processing ModeOffline Ready
Client-Side (WASM)

Calculations happen locally. No data sent to servers.

Network Requests
DESTINATION
STATUS
AnalyticsAllowed
AdSenseAllowed
File UploadsNone

Incognito Mode

Video Trimmer - Cut & Crop Videos Online | UnitMaster | UnitMaster Creator Studio