Free Online Video Trimmer

Cut the start and end of your video. Private, free, no upload.

100% private — processing happens on your device, nothing is uploaded.

0:00 / 0:00

Drag the purple range to set the cut. Play to preview the selection.

Works best with short clips (Reels, TikTok, Stories). Very large files may be slow on mobile.

By using this tool, you agree to our Terms of Use

Cut video online

Set start and end times, preview, then download a clean MP4 clip.

Made for short-form

Ideal after saving a Reel or TikTok you own—keep only the part you need.

100% private

Trimming runs locally with FFmpeg.wasm. Nothing is sent to Unvidio servers.

Why trim video online with Unvidio?

Most online cutters upload your file. Unvidio trims on your device—faster for short clips and better for privacy.

Pick a file, set start/end in seconds, preview the range, then download.

Pair with crop or compress when you need a social-ready export.

How to trim a video online (3 steps)

Use only files you own or may process. Processing stays on your device.

1. Choose your video

Select a local MP4, MOV, WebM, or similar clip.

2. Set start & end

Enter times in seconds. The preview seeks so you can check the cut.

3. Trim & download

Click Trim, wait for progress, then download the clipped MP4.

Trim tips for creators

Leave a tiny buffer (0.1–0.2s) before speech or beats. After trimming, use crop for 9:16 or compress if the file is still large.

Online video trimmer guide

Private browser trimming only—Unvidio does not store your videos.

A video trimmer (or video cutter) removes unwanted head/tail so your export is ready to post.

When to trim vs crop

Trim changes duration. Crop changes framing (9:16, 1:1, 16:9).

Often you trim first, then crop for Reels.

Accurate cuts

Browser re-encoding uses keyframes; very tight cuts may land a few frames off. Re-trim with a slightly later start if needed.

Support

FAQ

Quick answers to the most common questions about this tool.

Yes. It runs in your browser with no account and no upload quota.

No. Processing is local on your device.

Yes—use a file you own. Download first with Unvidio if needed, then trim here.

An MP4 (H.264 + AAC) for max compatibility.

Re-encoding uses your CPU. Prefer Wi‑Fi and shorter clips, or use desktop.

This tool keeps one continuous range from start to end. For complex edits, trim twice or use a timeline editor later.

About 200 MB is recommended for stable browser performance.

Yes. Trim first to shorten, then compress if chat apps reject the size.