Video Trimmer
Trim videos instantly in your browser. No server upload required.
Free tier: 100MB limit
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100% Private & Secure
Your files never leave your device. Processing happens locally in your browser sandbox.
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Cut & Trim Videos Online without Uploading
Use our advanced WebAssembly technology to process video directly on your device. Unlike other online trimmers that make you wait for uploads, UnitMaster processes everything locally. This means instant preview, no file size limits (Pro), and zero privacy risks.
Instant Processing
No upload time. No server queues. Since we process files locally, even large 4K videos open instantly for editing.
Lossless Stream Copy
Our 'stream copy' mode trims your video without re-encoding it. This preserves the exact original quality, bitrate, and resolution.
Supports All Formats
Works with MP4 (H.264), MOV (QuickTime), WebM, MKV, and AVI files naturally in your browser.
100% Privacy Guaranteed
Your personal videos never leave your computer. We cannot see them, share them, or store them.
Why choose UnitMaster?
- Trim unwanted parts from screen recordings.
- Cut social media clips from long videos.
- Remove intros/outros instantly.
- No watermarks on exported videos.