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视频合并拼接

把多个片段合成一个视频，可拖拽排序并添加转场效果。

Video Slicer

Split one video into multiple segments at the cut points you set — fixed interval, manual marks, or AI scene detection. Files never leave your device.

Drag & drop a video file here, or click to select

Supports MP4 / MOV / AVI / MKV and more · Processed in your browser, files never uploaded

Why Splice.Video?

100% private

Your videos are processed entirely in your browser — nothing is ever uploaded to a server.

AI scene detection

Automatically find shot changes and split your video at every scene cut with one click.

Lossless speed

Keyframe-aligned stream copy slices large videos in seconds without re-encoding; smart cut keeps cut points exact.

Free, no watermark

No installs, no sign-up, no watermarks. Works offline once loaded.

How it works

1. Load a video

Drag & drop or pick any MP4, MOV, AVI, MKV, WebM file.

2. Set cut points

Fixed interval, manual marks, or one-click AI scene detection — all points stay draggable and fine-tunable.

3. Slice, join & convert

Download every segment, join clips into one video, compress, extract audio or make a GIF.

4. Save or share

Results download straight to your device, or post to social via the system share sheet (mobile supported).

FAQ

Are my videos uploaded to a server?

No. Everything runs right inside your browser tab. Your files never leave your device — even the free-usage counter is stored locally.

Which formats are supported?

Any format your browser can play, including MP4, MOV, AVI, MKV, WebM and TS. Output is standard MP4, plus M4A/MP3 audio and GIF.

Why is slicing fast or slow sometimes?

Fast mode uses lossless stream copy when a cut aligns with a keyframe. When it does not, the segment is partially or fully re-encoded to keep the cut exact — that takes longer but preserves precision.

Is it really free?

Yes — daily free quotas cover interval/manual slicing, AI detection, joining and converting. Members get unlimited use.

Does it work on phones?

Yes. The interface is optimized for touch — a bottom navigation bar, a touch-friendly timeline with drag and double-tap, and system share sheet support for saving results to your photo library.

Do I need to install anything?

No. Just open this page in a modern browser — Chrome, Edge, Firefox, or Safari. Everything runs inside your browser: nothing to install.

How do I cancel or get a refund?

Auto-renew can be cancelled any time from your PayPal account — your benefits stay active until the end of the paid period. For refunds within 7 days of purchase, see our Refund Policy.

Can I use the results commercially?

Yes. The files you create here belong entirely to you. We make no claim on your content and never see your video data.